Why We Haven't Found Any Earth-Like Planets
Переглядів 808,307
День томуTwelve years ago, NASA predicted around 50 Earth-like planets would be discovered by the Kepler telescope, planets with the same size, warmth and host star as we do. And yet, we're left essentially none. What happened? Why did those predictions not match reality? And what can we learn from these 50 lost dreams...
Written & presented by Prof David Kipping
→ Support our research program: www.coolworldslab.com/support
→ Get Stash here! teespring.com/stores/cool-wor...
THANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, R. Sievers, G. Canterbury, J. Kill, J. Cassese, J. Kruger, S. Way, P. Deschaine, B. Stanciu & A. Pirogov.
::References::
► NASA Exoplanet Archive: exoplanetarchive.ipac.caltech...
► Borucki & Summers (1984), "The photometric method of detecting other planetary systems": ui.adsabs.harvard.edu/abs/198...
► Borucki et al. (1996), "FRESIP: A Mission to Determine the Character and Frequency of Extra-Solar Planets Around Solar-Like Stars": ui.adsabs.harvard.edu/abs/199...
► Borucki et al. (1997), "The Kepler Mission: A Mission To Detennine The Frequency Of Inner Planets Near The Habitable Zone For A Wide Range Of Stars": ui.adsabs.harvard.edu/abs/199...
► Borucki et al. (2003), "The Kepler Mission: Finding the Sizes, Orbits and Frequencies of Earth-size and Larger Extrasolar Planets": ui.adsabs.harvard.edu/abs/200...
► Borucki et al. (2003), "Kepler Mission: a mission to find Earth-size planets in the habitable zone": ui.adsabs.harvard.edu/abs/200...
► Borucki et al. (2004), "The Kepler mission: a technical overview": ui.adsabs.harvard.edu/abs/200...
► Quintana et al. (2014), "An Earth-sized Planet in the Habitable Zone of a Cool Star": arxiv.org/abs/1404.5667
► Jenkins et al. (2015), "Discovery and Validation of Kepler-452b: A 1.6-Re Super Earth Exoplanet in the Habitable Zone of a G2 Star":
arxiv.org/abs/1507.06723
► Mullaly et al. (2018), "Kepler's Earth-like Planets Should Not Be Confirmed Without Independent Detection: The Case of Kepler-452b": arxiv.org/abs/1803.11307
► Burke et al. (2019), "Re-Evaluating Small Long-Period Confirmed Planets From Kepler": arxiv.org/abs/1901.00506
► The LUVOIR team (2019), "The LUVOIR Mission Concept Study Final Report", arxiv.org/abs/1912.06219
► Borucki et al. (2020), "Science merit function for the Kepler mission": ui.adsabs.harvard.edu/abs/202...
► Christiansen et al. (2020): "Measuring Transit Signal Recovery in the Kepler Pipeline. IV. Completeness of the DR25 Planet Candidate Catalog": arxiv.org/abs/2010.04796
► Astro 2020 Decadal Survey: nap.edu/resource/26141/intera...
::Music::
Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (creativecommons.org/licenses/..., or with permission from the artist
► Brad Hill - Evening Approaches (0:00) [open.spotify.com/album/4pmiXc...]
► Atlas - Waking Up (01:48)
► Brad Hill - There is but One Good (03:54) [open.spotify.com/album/4pmiXc...]
► Falls - Life in Binary (07:35)
► Chris Zabriskie - Cylinder Five (12:55)
► Chris Zabriskie - We Were Never Meant to Live Here (15:01)
► Falls - Ripley (18:20)
► Brad Hill - Fragmented (22:13) [open.spotify.com/album/1QDRub...]
► Chris Zabriskie - Cylinder Two (23:16)
► Chris Zabriskie - Cylinder Four (26:52)
► Brad Hill - Arc (31:22) [open.spotify.com/album/4pmiXc...]
► Chris Zabriskie - Stories About the World That Once Was (33:09)
::Film/TV clips used::
► Ad Astra (2019) - 20th Century Fox
► The Matrix: Reloaded (2003) - Warner Bros. Pictures
► The Lord of the Rings: The Fellowship of the Ring (2001) - New Line Cinema
► (500) Days of Summer (2009) - Fox Searchlight Pictures
► Sunshine (2007) - Fox Searchlight Pictures
::Chapters::
00:00 Fifty Dreams
07:36 Expectations
12:57 Reality
22:14 Expectations vs Reality
31:23 Lessons from Kepler
38:07 Outro and credits
#50LostEarths #CoolWorlds
@SonicBoone56 2 роки тому
"This is Cool Worlds, we expect the best." Extremely impressive that you ran a simulation of what Kepler should have seen with our current understanding of the most common star types.
@freespirit995 2 роки тому
That was an extremely impressive video. As a non-scientist but with a keen interest in astronomy, I found the presentation clear and accessible. You have a real gift for explaining complex science to the layman! Thank you!
@thomgizziz 2 роки тому
But dude needs to stop it with the intonation that he is using. He is trying to make his voice sound spiritual and having more import and his writing uses superfluous words for no reason other than being pompous and trying to make it sound more flowery. This is what idiots do to try and make themselves feel smarter than others and don't understand that it makes them look like a fool.
@masmedsalem 2 роки тому
@Thom the guy is making it catchy, and to be fair he's really good at it. Most of people here like it, so if *you* don't, mate, go home.
@Blahblahblah1987 2 роки тому
@@masmedsalem he’s not wrong though.
@douglaswilkinson5700 Рік тому
@@masmedsalem Spot on! "Those who mind don't matter & those who matter don't mind!" Who cares how he sounds! It's the quality of the information not its delivery.
@ilikefish9769 Рік тому
@@thomgizziz get mad
@MaxPower-11 2 роки тому
The Achilles heel of trying to locate extrasolar plants using the transit method is that the edge of the planet’s orbital plane must be oriented towards us. Since other solar systems’ orbital planes are randomly tilted throughout the galaxy, even if a given solar system actually contains an Earth-like planet, the chances of Kepler picking up that planet are minuscule.
@ritsh_ Рік тому
the vast majority of orbital planes are oriented toward us.
@MaxPower-11 Рік тому
@@ritsh_ Absolutely not. The orbital planes of Solar systems in the Milky Way galaxy are completely random and there is no physical process that would make all or most of them align together.
@metorilt Рік тому
We know he said that in the video.
@ascherlafayette8572 Рік тому
@@MaxPower-11 source?
@MaxPower-11 Рік тому
@@ascherlafayette8572 Unfortunately, UKposts does not allow links in comments. See article entitled “What percent of star systems have orbits in the right orientation for scientists to find exoplanets through the transit method?” from the March 2013 issue of Astronomy magazine. According to the article, the chance of any given solar system that contains an Earth-like planet orbiting at 1 AU with a 365-day year in the galaxy having an orbital plane that is aligned such that we could detect that planet from Earth using the transit method is less than 0.5%.
@Interrobang212 2 роки тому
"Not reflective of our current state of knowledge" is the most respectfully delivered diss I have ever heard.
@johnstrawb3521 2 роки тому
11:55 - Speaking of which, the number 43 _reeks_ of creating 'facts' to fit your prior hypothesis.
@fotmheki 2 роки тому
NASA is the most profitable gov agency and yet the most under-budget one. If 10% of defense budget could be granted to NASA for 5 years it would be awesome
@loopmantra8314 2 роки тому
Like NdGT said - all they gotta do is convince the congress that China is about to colonize Mars and I quote "They'd be granted funds so fast it would take us to Mars in a year or two" :D
@Ashdad99 2 роки тому
NASA isn't part of their imperialistic mission. If NASA happens to have a satellite fall out of the sky on Beijing or hit Putin they might get a boost.
@bigpompano1659 2 роки тому
Maybe China will fund NASA after they’ve taken over
@frozenfrosty00 2 роки тому
Profitable???🤣
@Belioyt 2 роки тому
@@frozenfrosty00 yes profitable. The device you are using to cynically write that comment was made possible by the science and engineering pioneered at NASA
@atomicgeneral 2 роки тому
The fact that stars' variability is 10x more than anticipated surely goes a long way to explaining the dearth of discovered exo-earths.
@SimplySammyK 2 роки тому
I'm really hoping the james webb telescope finds something. I watched its deployment live on their stream and I've been so inspired and excited about this new breath of life in deep space
@ossiehalvorson7702 2 роки тому
Processed its first photons! Wonder how all those "it has so many single points of failure it's 100% guaranteed it's going to fail" naysayers are feeling now. Apparently the anti-science philosophy includes anti-engineer by default now too. Zero faith in some of the best minds on Earth.
@ontheruntonowhere 2 роки тому
@@ossiehalvorson7702 I don't think it signifies a lack of faith, but rather a realistic assessment of the possibility of failure, not unknown in spacecraft launches or deployments JWST is a hugely ambitious undertaking. The fact that it appears to be working so far is not only a testament to the engineers at NASA and Arianne, but also a bit of a miracle (not a real one, of course) that such a complex machine wasn't minutely jostled in exactly the wrong way.
@ossiehalvorson7702 2 роки тому
@@ontheruntonowhere There's a pretty major difference between recognizing it could fail and being 100% certain of it though. I wasn't holding my breath, but I wasn't running around telling everyone it was only a matter of time until something vital failed.
@ontheruntonowhere 2 роки тому
@@ossiehalvorson7702 Haha, I was sure it would blow up on the pad. I'm very glad it didn't. I think most of the people who said they were 100% certain of failure were 100% looking for attention.
@Nocturne83 2 роки тому
I am pretty optimistic that we will discover something in the next 25 years. Now that governments all over the world have acknowledged the UFO Phenomenon, we may even be close to making contact with E.Ts. Let's Just hope they Come in peace..
@Deep_Divers 2 роки тому
What a great high quality presentation. I love the simulation you ran. Real science and engineering always asks the question "Why was the result different than the prediction/expectation?" Imagine if we applied that question to our everyday lives and modified our behavior accordingly.
@manoz6194 2 роки тому
You probably don't realise this already happens by the people that control society through AI and data. How do you think they convinced people there was a pandemic for the last two years but faced barely any resistance. They have been doing social engineering using education and the media for decades to modify peoples behaviours, hopes, dreams and fears.
@harrietharlow9929 Рік тому
That would be wonderful. Unfortunately we don't seem to be mature enough to think before we act. Maybe one day, we'll reach that point--if we don't render ourselves extinct first.
@juaneer 3 місяці тому
You mean you don't apply that question daily?
@Deep_Divers 3 місяці тому
How clever you must feel as you troll the internet@@juaneer
@juaneer 3 місяці тому
@@Deep_Divers I'm being serious, as an engineer myself I've always wondered about outcomes and the process of things, even stuff in daily life. You should try too, question everything
@JayVal90 2 роки тому
It’s cheaper to build one $24B telescope that works than 3 $11B telescopes that don’t.
@ChinnuWoW 2 роки тому
It's also a lot cheaper than those useless F35s
@pixelwash9707 2 роки тому
How much of these cost estimates are for the launch vehicle(s)? If SpaceX Starship is successful in cutting the cost to get stuff into space, how will that affect the numbers?
@doctorrobert1339 2 роки тому
It would be pocket change if NASA could get the amount of funding that the US military does.
@JayVal90 2 роки тому
@@doctorrobert1339 Unfortunately a well-funded NASA will not deter the military aggressions of Russia, China, North Korea, etc.
@WilliamFord972 2 роки тому
@@JayVal90 However, it may be necessary as the next space race initiates.
@alexandermartin1837 2 роки тому
Excellent video , cool worlds and the exoplanets channel are my favs !!
@chinchfiles 2 роки тому
Don't forget Astrum
@geemanbmw 2 роки тому
Exoplanets needs to seriously start uploading videos. He's been ghosting
@MoCsomeone 2 роки тому
Check these out too Isaac Arthur Event Horizon John Michael Godier Anton Petrov Dr Becky PBS spacetime Fraser Cain Paul M Sutter
@DrTubeman 2 роки тому
Check out Melodysheep, they have a series called "Life Beyond" and have just released the third episode in the series, it is an absolutely amazing production.
@kreggur2864 2 роки тому
@@MoCsomeone Don't forget SEA!
@davidboyle1902 2 роки тому
Thank you for this. I was saddened to hear about the problems Kepler started having, and sadder still when it died. A fantastic instrument killed by mechanical failures. If only we could have gone back and fixed it. Now I realize that there was no fixing possible. That Kepler was simply unable to do what people had hoped it could do. I’m still sad, but now for another reason. We need a bigger, better instrument, one that may need to operate on different principles. Fortunately there are behemoth launch vehicles on the not too distant horizon. When they are flying, perhaps we can send that bigger, better telescope into space to try again to find Earth’s twin.
@jbbeiser983 Рік тому
What for?
@referensipi1664 Рік тому
We have JWST now, 100 times more powerful than Kepler
@coling8176 Рік тому
How far away are these Earth-like planets and shouldn’t we figure out how to reach them before getting too excited?
@roccodevillers8860 11 місяців тому
@@coling8176 Having a good idea how many habitable worlds there are and possibly detecting life signs etc important to understand where we come from and if we have company in galaxy. Agree no one is visiting anytime soon!
@Fido-vm9zi 5 місяців тому
I think I read the Mars Rover can self-repair, but I'm not entirely sure.
@hughjorgen1051 2 роки тому
Can’t shake the feeling that human desire bias that we’re not alone is factoring into their hypotheses, then we’re disappointed when the data falls way short.
@Deeplycloseted435 2 роки тому
We just CAN’T see that far. The area that we can detect transits, is so tiny compared to the size of our galaxy. These are just our very nearest neighbors. We have a long way to go. We’re pretty good at seeing the largest things from very far away. We can see the forrest, but not the trees. And yes, of course we are biased. We struggle to think outside of our own minds and experience all the time. Its why most intelligent alien concepts have four limbs, stand upright, with two ears, two eyes, mouth and nose. Where did we ever get these ideas? Hmm.... Even if we look at the Earth over it’s history.....how much of Earth’s 4.5 billion years of existence, would we have considered it “habitable”? Because life had already existed a long, long, LONG time here......before a human being could have stood up, stretched out, and taken a deep breath without dying instantly. Oxygen in the atmosphere only showed up about 2 billion years ago. Thanks plankton. Even then, it caused a mass extinction, and the land was completely barren at the time. It then took another 1.5 billion years for plants to develop and move onto land. So for 4 of 4.5 billion years of Earth’s life......any other alien species looking for complex life on other planets, may have easily glossed over our water world as toxic and barren, besides a smattering of simple life near the edges of it’s vast seas. Perhaps that is common? Perhaps not? We don’t know? So its not just WHERE are the Earth analogs and alien life, but WHEN. Our species has had tech in space for less than 80 years. We are already squirming about, “Where is our new planet and where are all the aliens?” We literally JUST figured out that our galaxy was not the universe. Still, while the true end results of Kepler may seem disappointing, we have learned so much. When I was a kid (80’s), we assumed that most stars didn’t have a system of planets (wrong), and we assumed that most planetary systems would be like ours with rocky planets nearer to a star and gas planets further out (also wrong). Our human assumptions have been wrong SO MANY times in the history of science. Luckily we find ways to challenge or prove those assumptions. In doing so, we expand our understanding, one brick at a time.
@carjamlaw753 2 роки тому
I finally found the smart group in this set of comments. Thank you. I'm weary of the logical being overlooked for the desired.
@carjamlaw753 2 роки тому
@@woodypigeon Yes. It's the only chance the galaxy has to avoid humanity's taint. Imagine if Dune happens. Yuck!
@osiris7945 Місяць тому
if we don't develop technology in the span of the next 100 years enough to see beyond our current capabilities then human is doomed. honestly, I hate hearing excuses after trillions of dollars poured into this research about the search for another Earth-like planet that can support our civilization for other millennia factually, scientifically failed with zero evidence and we keep going with the lies and recalculating everything, there's gotta be another perspective how to preverse humanity rather looking for place to facilitate our greeds. @@Deeplycloseted435
@bkbland1626 2 роки тому
Your rigor is greatly appreciated. I share your enthusiasm for locating planets like our own. I think the rare Earth hypothesis may actually prove to be the case. As always, we'll see. Groove on, Dr. Kipping.
@mattsmith5421 2 роки тому
Your slow narration over space footage is unmatched. Hopefully one day there will be a full video of just that.
@bozomori2287 2 роки тому
His accent would be put to better use if he narrated over susage frying videos.
@salanieyow2479 2 роки тому
Another fantastic video, thank you Cool worlds team. Every time I watch video on this channel, I love the earth even more because it shows us how special we are and how luck we are to have amazing 🌍
@gregorybehm8558 2 роки тому
Love the videos. I can't thank you enough for making these. The graphics are incredible, and information is amazing to watch/listen.
@laurachapple6795 2 роки тому
The last few years have left me so skeptical about the existence of life in the universe that I'm no longer sure *we* exist.
@bozomori2287 2 роки тому
@Usagi Ninjin A sapient species would not speak english. It comes off as hilarious and dellusional when some wankers speak about sapience in english.
@criddell86 7 місяців тому
In many years of watching videos involving technical and scientific explanations and presentations (and attempting to do some myself). This has to be the best presented I have ever seen. I take my hat off to you and your ability to explain and present complex concepts in simple, understandable terms but at the same time with no loss of intrigue for the facts and underlying complexities. Thank you so much for this.
@SocksWithSandals 2 роки тому
Kepler proved what a hard problem finding Earth-like planets by transit is. Maybe some of the larger launch vehicles on the drawing board now will permit large enough photon collection to rise above the noise.
@jebes909090 Рік тому
Or earth is unique . Our system is certainly striking when you look at all yhe systems discovered so far. They are sp random and chaotic. Our system is almost disconcertinly orderly. Maybe its just that wr have all the information on it and only bits on others, but i dont know. Im not saying ours was constructed but *ancient aliens meme*
@tylerdurden3722 Рік тому
@@jebes909090 No really, ours is more "chaotic" than most. E.g. Most stars have planets that are tidally locked. Being tidally locked means their axis is not tilted and doesn't wobble. Many stars have planets that have orbits that are ordered. Each next planet away from the star orbiting at exactly twice the rate of the previous one. Many planets might not be volcanic active anymore either (due to age, etc). It's the disorderly randomness of earth that makes it unique among the tiny bit we've been able to see a tiny bit of.
@hristokaishev4665 2 роки тому
Always amazing content! Thank you!
@caseykissinger9800 2 роки тому
This is an excellent video. I have always been curious about the universe, and by watching your content I actually understand some of it now. 💯🤞
@spindoctor6385 2 роки тому
You used a logical method to exclude the first of the 3 planets outside of the ratio stipulated to be an Earth like planet. Has any work been done to perhaps do the same with planets in a smaller otbit that may show similar gaps in the pattern and may then appear in the earth like ratio?
@pajaf0341 2 роки тому
I like your way of thinking.
@CoolWorldsLab 2 роки тому
I thought the same thing when I came across that. It’s less likely that an inner planet has the wrong period because there are so many more transits of course. As in you have to screw up really bad to get the wrong period with so much data! But it’s certainly possible I suppose, I just don’t know how likely.
@spindoctor6385 2 роки тому
@@CoolWorldsLab I didn't think of that, That would drastically reduce the chances. Having 2 "missing" transits out of four would be rare enough. Four of eight seems highly unlikely but we would only need one candidate to get a good result. Is this data available to everyone? I will check them one by one myself. The data seems easy enough to interpret.
@ixeroi Рік тому
I absolutely LOVE this channel! Every video I watch, I feel just little bit more intelligent than before absorbing all this information. Also, your narration voice is very appealing to me, almost trace inducing. Keep up the good work sir, you are a definite necessity in my search for knowledge!
@stevencoardvenice 2 роки тому
"...We know that we are approaching the grandest of mysteries..... "The size, and scale, of the Cosmos..... is beyond human comprehension.." You're a great writer dr. Kipping. And sagan was a GENIUS. I wish he were still alive
@MyBeautifulDarkTwistedFantasy6 2 роки тому
I love how you use movie clips to convey your points. I love this channel.
@zee_space_wolfy 2 роки тому
I hate it. I like the channel but using movies as stock footage is cheesy.
@nathanahubbard1975 2 роки тому
It was certainly strange and distracting.
@RonHarrisMe 2 роки тому
Before I retired, I used to teach technical/computer/networking/security topics. Sometimes explaining the complex can be extremely difficult. Prof. Kipping has made this task seem simple. People rarely surprise me, in fact I can't remember the last person who has, but Prof. Kipping has done just that. WOW.
@WitchMedusa Рік тому
I'm blown away by the quality & level of effort put into these videos, this is amazing!
@brianmorin5547 11 місяців тому
So glad I found this channel! The content is so dense!
@gandalfgreyhame3425 2 роки тому
Excellent. Addressed something I had been wondering about everytime I read another media report about the discovery of exoplanets in the "goldilocks zone" None of them seemed to be around true sunlike stars, most were around red dwarves or other hostile stars.
@sciencerscientifico310 2 роки тому
Dwarf stars are not necessarily more hostile than sun-like stars. Sure they tend to be prone to extremely frequent flares when they're young, but as the stars age, these flares become less and less frequent. The largest constraint when it comes to red dwarf planetary habitability is the habitable zones of these stars are so close in that the planets are more likely to be tidal locked. Tidal locking probably prevents a planet from having a magnetic field, as magnetic fields are produced by the rotation of planetary cores.
@gandalfgreyhame3425 2 роки тому
@@sciencerscientifico310 Millions if not billions of years of these intense solar flares will almost certainly strip away the atmosphere and most of the surface water of the exoplanets, especially the ones that are so close to the red dwarf in the "habitable" zone. This will happen whether there is a magnetic field or not (magnetic fields can only protect so much against constant giant flares from a nearby star) and well before the red dwarves settle down in their old age. That is the main reason I see red dwarves as hostile stars unlikely to harbor the conditions for habitable earthlike exoplanets. The tidal locking, loss of magnetic field, etc., only add to the likelihood of additional hostile conditions on these exoplanets.
@gutz-Coldrevenge 2 роки тому
i find it amazing watching a video like this, knowing that the Kepler program is i believe one of the things that gamers helped process, in a game i played years ago called Eve Online, there was a "mini-game" that was called Project Discovery, in the part i took part in was dealing with Transits, categorizing them, and trying to figure out what size and distance the transiting object was from its parent star.
@qzbnyv 2 роки тому
Watching again 3 months later and feeling just as grateful as the first time to be living in an age where I can watch quality video productions like this about the actual science behind those news snippets.
@jurnuz42O 2 роки тому
Another intresting and exciting video, keep up the good work David and keep cool 🤜🤛👏🙌
@bernardsmith1329 2 роки тому
I realise I may have missed some content of your excellent cool worlds series, but have you yet touched on the 'Faint young sun paradox'? If this theory is correct it may well reduce Earthlike candidates to a really, really small number. If I haven't missed anything, perhaps we could hear your thoughts on this paradox? Thanks for this brilliant series and stay curious!
@Leyrann 2 роки тому
I'm curious what you mean by that exactly? I thought the faint young sun paradox, which to my (admittedly limited) knowledge says that the young sun should have been too faint to allow for liquid water on the surface of the earth, was resolved by the earth's old atmosphere (with CO2 and methane) providing a significantly stronger greenhouse effect; and in fact it was only life that changed our atmosphere, and is still doing so, as molecular oxygen isn't actually a long-term stable compound in an atmosphere.
@davidhand9721 2 роки тому
So what I'm hearing is that we need to look at a hell of a lot more stars to get at a decent estimate of eta earth. Honestly I'm more optimistic about atmospheric spectrometry in the search for life. If we get hung up on Earth conditions, we risk overlooking other potentially more common forms of life and intelligence. Finding any planet with any gases significantly out of equilibrium would be a great day to open a bottle of champagne, not just O2 and CO2 in a narrow band of orbits and masses.
@ruary3243 2 роки тому
I hear what your saying and agree, just mental to think about if they're intelligent and hostile.
@anonymous-rb2sr 2 роки тому
yes, you seem to get it, and it's not like launching the infrastructure (satelite fleet) to do it would be prohibitedly expensive, just far beyond any space agency's budget, aka never gonna happen
@anonymous-rb2sr 2 роки тому
@@ruary3243 if aliens exist and are intelligent and hostile (as they likely are) we just kill them by being more intelligent and more hostile than them, and if we fail to do that we kinda deserve our extermination by them very thankfully for humanity the galaxy seems pretty empty, and interstellar tavel quite impossible I mean just think about how desireable earth is, if intelligent spacefaring aliens existed we would all be killed the instant they learned of our existence, that's just pragmatism, and the assumption is that the aliens are intelligent
@punditgi 2 роки тому
Another beautiful and captivating video. Superbly done, monsieur! 👍
@Beardedgumby 2 роки тому
I just recently found this channel... yesterday... I've watched a about 15 videos already. Love the voice very calming.
@amandahugginkiss55 2 роки тому
My favorite video of this channel is the one about beatlejuice getting dimmer. Dr kippling does such an amazing job of teaching without being condescending. So glad you enjoy it like I do!
@carysmialek6746 2 роки тому
Kepler should have been approved long before it was. It's mission was fundamental to our understanding of how unique Earth is. Unfortunately, it's gyros gave out just at it was able to establish the existence of longer period planets. We need to build on what we have learned and launch a more capable mission.
@bozomori2287 2 роки тому
You need to pay rent
@234cheech 2 роки тому
have blasted another telescope called james watt are so what mission are you wanting
@234cheech 2 роки тому
waky f waky
@SarevokRegor 2 роки тому
I believe TESS might be
@jesusramirezromo2037 Рік тому
@@234cheech James Webb is an Infrared Telescope, Not a photon detector, It won't be as good for finding Exo Planets, Just look at planets already found
@benmack4543 2 роки тому
NASA is the most undervalued program in the US government. I will stand by that to my dying breath. I hate how the country is run which is why I want to be a politician right now. I hate how I am so powerless in whatever endeavours my government takes.
@user-bt5zg7tf6o 2 роки тому
'Cool Worlds' - is undoubtedly, the Most Beautiful Channel in the UKposts !! Excellent explanation, and amazing presentation..!! All the BEST Professor..!! Looking for more like this one..!!
@williams.vincent4235 2 роки тому
Another terrific video from David Kipling!
@YouCountSheep 2 роки тому
From our own system I learned that formations of systems can wildly differ, and ours is pretty special because Jupiter raced to the sun, sucked up material which would have belonged to Mars then got pulled out by Saturn which in turn flung more water to the inner solar system. Maybe thats why we find more "superearths" 1.5+ times bigger than earth which had no material stolen, meaning they dont have gas giants that did what Saturn and Jupiter did here, and thus not much or no water at all. Kepler is just a children scope for what we need I guess.
@Drahko12 2 роки тому
Addition to that Earth was hit by a proto planet that created the moon. I’m still wondering if that collision created plate tectonics and kickstart life here. Venus crust doesn’t have that and no moon. Is interesting to question the unique elements that created our planet and how it seems that we got very lucky
@YouCountSheep 2 роки тому
@@Drahko12 Pretty sure the iron core is hotter because of the impact than other planets for sure, and tectonics seem to happen when the crust is thin and swimming on the core. Conservation of energy has to mean that the kinetic energy of that impact went somewhere, and it probably heated up our core, which is also providing our magnetic field. All in all alot of circumstances that make earth pretty unique. All that has to be happening to some degree in other systems to get equal base for life. Even all these microbiological things, oxygenation which almost wiped out all life ect. But maybe life isnt rare, but inevitable at some stage of compound chemical development of elements.
@Jayc5001 2 роки тому
We have a lot more to learn. We need more data.
@lucyfyre6126 2 роки тому
I find it difficult to believe that anyone with the slightest knowledge of cosmology could actually believe that all sun-like stars would have an earth-like planet in the goldilocks zone. I think this is a case of them intentionally fudging the odds to make it sound more appealing to the beancounters that decide if a project is worth funding.
@waspsandwich6548 Рік тому
The astronomical definition of an earthlike planet is very broad. Your assertion that the assumption these professionals who work on this as their job is unbelievable is just a little silly. I can understand how the idea might have been upscale for attention, but I doubt that the people who worked on this assumption were intentionally lying
@jeremiahwollander7364 Рік тому
Just found this channel... You, sir, are the Carl Sagan of this generation. Keep being awesome. I love the way you make my mind think when I watch/listen to your videos. You're doing the gods work here😋
@dr.jamesolack8504 2 роки тому
Intriguing and thought provoking stuff, doc. Always a pleasure, indeed! 🇺🇸🎄👍
@johanjonsson6504 2 роки тому
This channel deserves more subscribers!
@GetZeached 2 роки тому
Been binging this channel for a while now, glad I made it to my first new video :)
@Edwinvangent 2 роки тому
great video again, thx for uploading all these amazing video's
@N1originalgazza 2 роки тому
This video is simply fantastic, it kept me glued to the screen trying to figure out something I'm not an expert on! Thank you.
@sync4995 2 роки тому
Great video, going to watch it twice like always so my brain soaks it in fully 😂
@zunaidchowdhowry8554 2 роки тому
This makes me appreciate earth more than anything How special is our blue little drop of life in the sea of nothingness We should do our best to protect earth 🌎
@WillArtie Рік тому
This channel is fking amazing. The information and presentation is exquisite. I generally judge a science/astro vid by mainly how much extra info and/or understanding I come away with. Have I been educated? For most CWs vids the answer is a resounding yes. The quality is just a bonus.
@toddparis1238 2 місяці тому
Mr. Professor Kipping, your my inspiration on my journey of curiously and wonder. Love your fact based, backed your studies! Just admire everything you bring to the table Thank you 😊
@skagate 2 роки тому
Thank you! The CoolWorlds videos are so amazing, I get the chills watching these. I am wondering if you think an array of a number of telescopes working in concert could be cheaper than trying to go for just one large mirror? Would that kind of system get the resolution and data that you need to make better observations about the exoplanets?
@marcomattano3705 2 роки тому
Or maybe a fleet of "Terrascopes" strategically positioned in order to maximize the lines of sight of possible Earth like exoplanets would be even better. Build one and use SpaceX production unit line like in order to guild and launch them.
@tedski69 2 роки тому
Assumptions are mother of all disappointments. Always wondered why the term "life" is included in all these papers and even videos instead of "life - as we know it". For all we know our type of life could be very rare indeed and the galaxy is littered with other (more common) types of life that are far, far more common. It's a little like saying Earth wasn't particular special because all solar systems (that had planets) would be nice and neat with rocky Worlds on the inside system and gas giants towards the outer system. We have made soooo many incorrect assumptions in astronomy.
@Gary-Seven-and-Isis-in-1968 2 роки тому
To discover a proto Earth where life did not begin would give us the possibility of seeding it with life from our own world.
@jettmthebluedragon Рік тому
I agree 😐after all life in the universe is rare because it takes a certain amount of things for earth to happen now you could say we are the only planet to have carbon life and that may be true how 😐it took the right time of weathering and erosion 😐in fact even before this planet ever formed their is no telling that we were most likely dead 😑it’s all about the brain 😐before we came into this world we had no brain and when we die our brain will dissolve into nothing yet again 😑could another earth form again?😐maybe not😓however maybe just maybe 😐their is a possibility after all their is something I have learned about and that would be for something to truly be dead is do something to not exist in the first place 😑this goes for the universe earth whatever it may take a very long time 😓but Beacuse we are here it feels as if it was yesterday 😐also another thing nature can’t produce what is not possible 😑if it’s impossible that means it’s 0 and yet everything on earth from the past present and future has potential to live again 😐 to get to ware we are today it will take eons 😓and we see the world from first person point of view even before we were ever born 😐and even in death the universe may not be for us 😐but this planet is and maybe Beacuse everyone and everything you see lives their is a possibility we can and just might live again 🙂but with nature nature makes no promises 😑saying we even live in the first place could make scientists scratch their heads 😏 after all they say the chances of this earth are basically 0 that may be 😐however somehow we are living today 🙂if the earth did not ever form we would most likely be all ready be dead long ago 😓even before this planet ever formed in the first place 😐all that science wants is proof why don’t we see any earths ?😓why ware all they ?😐well for one you not going to get a full copy of the earth what it looks like now 😑and also earth was not always like this 😐the way we see it it took eons it took billions of years also when we say something is dead or extinct all that means is they dont exist anymore however they did before and one day humans and this planet will be extinct meaning we will dead 😐however….that does not mean they can’t evolve again 😐after all we all are the cosmos everything past present and future everything you see has the ability to live and evolve again 😐it may seem impossible but truth is we are the impossible 😑✊
@mogreasy8499 2 роки тому
Another excellent video which always leaves me looking forward to the next educational video.
@Stegibbon 2 роки тому
Best Science channel on YT. Fantastic information, exceptional research and you're so easy to listen to.
@Ryan-nd3gr Рік тому
I didnt hear any mention of the importance of our moon. Also, a lot of the presentations about life on other earth like planets seem to come up with a high percentage of tidally locked bodies. With the amount of random chance involved in our own development, what are the chances that life could reach sentience on a planet that is half frozen, half scorching? Or if the wobble was so great that it sent the oceans washing across most of the land in what might be like constant tsunamis? It makes me think about Ray Bradbury's "frost and fire"
@kalanivernon7273 Рік тому
Given the difficulty of detecting moon's in our own Solar system, and the overall difficulty of detecting even Super-Earth's in other solar systems - detecting a moon that itself couldn't be classified as a planet is beyond our current technology. Even then, I don't recall us detecting even a single exo-moon as of yet (how exactly would we be able to separate a moon from its parent planet using the transit method is beyond me).
@ShadowTheHedgehogCZ 2 роки тому
9:35 - I see this as the most important bottleneck. We can only discover planets in system where the orientation allows for the planets to eclipse the star. And it's 1 in 200? That means that for every single planet we observed, we discarded 199 without even looking! And then we make the bold assumption that Earth like planets are so rare they are virtually non existent. Despite we base that assumption on 0.5% of data. 0.5% of data from our local vicinity, not even the complete data.
@anonymous-rb2sr 2 роки тому
in the concept of doing this with the goal of a general survey/gaining statistical knowledge in mind I really don't see that as an issue, if you care about the % of each type of planet near us in the galaxy, then even if the method only shows you 1/200 (more like 1/800 or 1/4000 let's be somewhat realistic) of planets, GIVEN that you have a system that gives you a good statistical sampling withing that 1 in 200, then you can just multiply the numbers by 200 and get a fairly accurate idea of what the actual statistical spread is but the issue is that we are laughably far from doing that, and even estimating what % of planets are visible through the transit method is far beyond our grasp, so we don't even know what number we would need to mulitply the data WE DON'T HAVE by to get a correct result (it doesnt just have to line up, it has to be looked at within the few hours the transit lasts by the telescope, so in reality you only see one in hundreds of thousands with one space telescope)
@EventHorizon31 2 роки тому
@@anonymous-rb2sr This gives me some hope.
@billybaloney7769 2 роки тому
Regardless of Keplar not finding a plethora of earth-like planets, the push of technology to improve the detection process was worth finding 1000 habitable zone planets. Maybe someone could start a crowd source fund to push the Luvoir project
@marclombardi1701 2 роки тому
you have expanded my thought , thank you for the videos. keep up the amazing work , I know I'm not the only one that has looked at you like the next Carl Sagan
@ShatteredWindowpane 2 роки тому
Your channel provides a great source of inspiration to people like me who love learning about this stuff. Keep up the great work
@anonymous-rb2sr 2 роки тому
His channel is great but considering he works for NASA he should be spending his effort lobbying for multiplying it's budget by a number several digits long rather than make youtube videos The videos are nice sure, but with NASA's whole "slow trickle" "no redundancy" policy, scientific discoveries are more of a probabilistic event rather than something progressing at a normal pace, he might run out of things to talk about 😂
@yoredeerleader 2 роки тому
A lot of people forget that the Drake equation exists because of the Fermi paradox, and the Fermi paradox exists because we have no evidence for life beyond earth.
@channelbree 2 роки тому
For me things are much more complicated. I believe humans know about multiple civs, it’s just the rest of us are kept in the dark.
@akikleist 2 роки тому
I don't know why, but hearing the sentence "a ghost in the machine" from you, made me happy. That phrase have been stuck in my head since I first heard of it in I, Robot movie
@Quickshot0 2 роки тому
I guess one can perhaps but hope that a new launch vehicle like Starship will drag launch costs down so much, that a more mass heavy, more simple engineered telescope can be launched affordably instead. In that case one could perhaps have a some what larger telescope with out breaking NASA's budget.
@garryjones1847 2 роки тому
Love your Passion!! Keep searching for those moons! Your videos are inspiring! Love your videos and Project! You shall be remembered Sir! One of those moons or the telescope that finds them in the future will have your name! Maybe you are a bit like Copernicus himself! A pioneer! Someone that will be later appreciated for his revolutionary work! A giant whose shoulders others stand upon to look farther than those before!
@daveanderson718 Рік тому
Dude, thank you for the very informative, articulate and timely video discussing the very practical realities of finding the "Holy Grail". Very effective in getting the topic across in a most engaging manner. Thanks again.
@victoriay6246 2 роки тому
Simply love this channel 💗
@bobpeters61 2 роки тому
An "Earth like" planet would pose serious ethical questions in terms of colonization. Science has established that life played a vital role in transforming the Earth's environment from one hostile to our life forms into one in which we could have evolved. Therefore, it is safe to assume that an exoplanet with a truly "Earth like" environment would already belong to life already there.
@briandufty5081 2 роки тому
It's not yours. It's not mine. How can you take possession..
@stevenscott2136 2 роки тому
I doubt you could convince people that a nice Earthlike planet should be off-limits just because it has non-sapient animals. Plenty of people want to start over (or think they do -- colonizing is WORK), plenty of people want rid of each other, governments and companies want to expand.
@arthurduncan5838 2 роки тому
Manifest Destiny 2.0
@njm3211 2 роки тому
Fantastic video as usual. Disabused me of my already diminished optimism for earthlike planets. A Kepler 2.0 would be helpful, improving the proven technology and perhaps the size of the optics. JWST doesn't have too many exciting exoplanet targets for study at least earthlike ones.
@zimriel Рік тому
55 Cancri excites me, although you are right, no earths over there.
@oldmandoinghighkicksonlyin1368 2 роки тому
Just brilliant. This video was mind blowing.
@Haphazart 9 місяців тому
What an extraordinary channel. TY so much for such content, captivating, informative, thought-provoking. You sir, are a national treasure.
@Cannabian 2 роки тому
This is why I love this channel, I would of probably gone of for years thinking Kepler detected several earth sized planets in the habitable zone. Thanks for all the hard work!
@CoolWorldsLab 2 роки тому
Thanks! Remember that our video here uses Borucki’s Earth proxy zone and not the habitable zone which is subject to considerable debate and is generally wider
@Cannabian 2 роки тому
@@CoolWorldsLab @Cool Worlds thanks for the correction, I conflated two things there.
@jamesvia389 2 роки тому
Disappointing for sure, but Nature doesn't care whether we are disappointed or elated at what we discover. Nature has given us the aptitude and intelligence to find out her secrets so let's learn and apply that knowledge to move forward in our scientific quests no matter what we find. The answers are out there and ready to be discovered. Let's find out what is there.
@walidsaad2793 2 роки тому
"Nature"
@stevencoardvenice 2 роки тому
But Q will tell you that it's dangerous out there .you are about to move into areas of the galaxy containing wonders more incredible than you can possibly imagine - and terrors to freeze your soul
@Tim_Franklin 2 роки тому
@@walidsaad2793 what's that supposed to mean?
@MagnusQuake 2 роки тому
@@walidsaad2793 nature-aly!
@walidsaad2793 2 роки тому
@@Tim_Franklin Idk , u give it a thought
@SubvertTheState 2 роки тому
"All the science geeks are excited about this one, Earth's twin" -fetches my list of 'pros' of why to continue existing-
@xman933 Рік тому
Some many takeaways and questions arising from this excellent video: 1 Since in the mission progression you showed, TESS and JWST are underway, what are your thoughts/concerns of the impacts of the assumptions used in those missions designs, assuming they were similar to those used in Kepler? 2 Were there any lessons learned from Kepler that were incorporated in the design and execution of TESS & JWST? 3 Do you have any plans for videos on the design assumptions used in TESS & JWST and how uncertainties in those assumptions may affect the outcomes from TESS & JWST? 4 Were the findings from yours or similar analyses of the Kepler mission available to and/or used by the decadal survey team in the proposal for the LUVOIR/HDST mission? Great video, thoroughly researched and thoughtfully presented and greatly appreciated (even if disappointing since I had been influenced by the (click bait?) reporting of the results of the Kepler mission).
@tankej 2 роки тому
Let's celebrate Kepler by doing it right. I completely agree. Luvoir etc. should be postponed until we have more informed expectations. Those price tags are ridiculous if there's any chance for failure.
@AdmiralBob 2 роки тому
Also I'm not too interested in cost cutting the mission. Buy once cry once.
@anonymous-rb2sr 2 роки тому
we already know everything there is to know about the odds, you just won't hear them often from a mix of lies and ignorance, the bottom line is that doing what Kepler was meant to do is fully possible and fully within humanity's current budget, but it would mean having a final detection ratio many orders of magnitude over what kepler was capable of Either have telescopes 2-3 orders of magnitude better than kepler in 1-2 orders of magnitude greater numbers, or any variation of quality and quantity with those orders of magnitude I don't think I need to tell you how that doesnt quite fit into nasa's budget
@jmundale 2 роки тому
i really loved this video, i think one of your best. I got a completely different perspective on Kepler than one I had been picking up in major medial outlets. Thanks for such an in depth, nuanced explanation.
@CoolWorldsLab 2 роки тому
Thanks Jack, it was a lot of work so I sincerely appreciate your comment!
@marknasty6413 8 місяців тому
Brilliant. You’re videos are wonderful every time.
@Inug4mi 2 місяці тому
Another great video, Dr. Kipping 👍 😊
@metroidprime3863 2 роки тому
I miss Interstellar sounds track in the background of these awesome videos.
@beardedzeus1337 2 роки тому
How beautiful to include Galadriel speaking to the Fellowship to give an analog to our quest to find Earth likes. Your videos are always so highly produced and you manage to give some fairly intense emotions through your choice of music.
@TheStefmcd 2 роки тому
Fantastic and absorbing video. So thorough and hugely intriguing.
@deeplife9654 2 роки тому
Your channel is just awesome and never disappointed
@bigedslobotomy 2 роки тому
This video adds a good bit of skepticism to the science of exobiology. Too many people have integrated the Star Trek and Star Wars “intelligent life is common” theme into their view of life around other stars. Science should always be skeptical until it is proven.
@dustinking2965 2 роки тому
It's a bit mindblowing that we still don't know for sure if there are any other earth-sized habitable-zone planets around Sun-like stars. There have to be some somewhere, right? But our system is weird: no super-earth, quiet star, more phosphorous than usual, large moon. Maybe we don't hear any aliens because the conditions for life and civilization are much rarer than we would have guessed.
@Cyberpuppy63 2 роки тому
Super - Earth's are not the answer. The gleisse system, for example, seems to very little water. It's not known (as of yet) if any of the planets have moons; which might be a large pre-requisite for a stable (long term) biome.
@marcomattano3705 2 роки тому
Rare Earth. Rare Sun. Rare life. Rare Intelligence. Rare Technologic Civilizations.
@channelbree 2 роки тому
Bro, there is a mighty elephant in the room and the fact you’re here probably means you know what I mean. EBE’s are well known to Humanity.
@dustinking2965 2 роки тому
@@channelbree I'm not aware of any credible evidence of "extraterrestrial biological entities". I think if we did have that, SETI research wouldn't be woefully underfunded.
@LS-us1jm 2 роки тому
Everyone’s out here saying that aliens definitely have to exist but I’ve always thought that alien life is so much rarer than we think because the fact that we humans are here is out of pure chance. The number of events and changed our planet had to undergo to eventually house us is mind blowing and so rare
@user-vp3ho4vj5d 6 місяців тому
As always, loved listening to your Video.
@Fantax92 Рік тому
There's no shame in failing. Try and try again. Turn your failures into discovery. I'm amazed how far science has came and keeps going. Thank you to all our past, current and future scientists
@sciencerscientifico310 2 роки тому
The bigger sizes of these "Earthlike" planets automatically precludes them from being truly like Earth, even if some of them are liveable for carbon-based water dependent organisms. The major difference is the high gravity of these worlds, twice the strength of earth's gravity on average, that would lead to changes in the physical makeup of the planet.
@cristianm7097 Рік тому
Imagine intelligent beings with strong bones and muscles that were also able to escape that gravity in spaceships and land on Earth.
@fireofenergy 2 роки тому
Could a bunch of "smaller" scopes, that _fit in one piece, each, within Starships_ be used once they are successful in lowering the launch costs down dramatically, as a really large interferometer the size of Earth's (or Mars) orbit?
@Republican_Extremest 2 роки тому
Depends on how low Elon Musk can bring down the costs per launch
@fireofenergy 2 роки тому
@@Republican_Extremest SpaceX already lowered the costs dramatically, albeit, the larger dia Starship isn't ready to fly, yet. Smaller scopes could fit, though.
@dsdy1205 Рік тому
Interferometry depends greatly on accurate measurements of the relative positions of each receiver down to sub wavelength distances. For radio waves this is easy, wavelengths are on the order of meters, so a GPS receiver can easily get sub-wavelength position data. For visible light as is needed for exoplanet discovery, you're talking about sub-nanometer precision, made worse by the fact that you're trying to position orbital satellites. The ability to do this is still a very very long way off
@tylerdurden3722 Рік тому
@@dsdy1205 aren't they already doing this at infrared wavelengths with telescopes on earth?
@dsdy1205 Рік тому
@@tylerdurden3722 they are doing this at radio wavelengths on earth. Radio waves are meters long and easy to work with. Also, the Earth is mostly rigid, which makes positioning and wavefront analysis way easier. I only know of one optical telescope that does this, and that's the Very Large Telescope. It needs a wide array of very VERY fine-tuned optical 'pipes' to funnel the light from 4 different apertures onto one receiver, with all the wavefronts landing within 0.1 wavelengths of each other. Not by any means a trivial task, and that's considering they're securely bolted down onto a Chilean mountainside.
@harddrive5 2 роки тому
This channel is incredibly informative, visually stunning, but also very sad at the same time.
@geologist_luna Рік тому
As a geochemist, using ICP technology, dealing with background noise with detections of 8x BN (background noise), this whole video really spoke to me. Great video, very well described.
@ridetillidie8090 2 роки тому
Just remember folks: Kepler searched 10 sq degrees of space. That leaves 41,800+ degrees yet to be scoured. Hope springs eternal!
@CoolWorldsLab 2 роки тому
Absolutely, Kepler leaves plenty of space for hope because ultimately it didn’t really deliver a clear answer
@matthewyabsley 2 роки тому
@@CoolWorldsLab - It did. But not to that question. It showed we can learn knowledge in this manner, that we can build a science that didn't require the brilliance of just one exceptional scientist. It established a framework and paved the way to answer one question; Is it possible to find what we want with this method. And that answer was yes and that we need more of it. :-)
@anonymous-rb2sr 2 роки тому
truly a well planned mission fully within the means of the agency 😂 also you're wrong by a factor of ten but who cares ten times 0 is still 0
@anonymous-rb2sr 2 роки тому
@@CoolWorldsLab the reasonable thing would be to accept the status of the Kepler mission as a failure and focussing the efforts of the scientific community on a salvage operation that could yield way more value for the future of this research than it's mission statement ever could, that being the salvage of the technical details discovered along the way of it's conception construction and testing, as well as the proper analisis of this data into a useable form for any future team endeavouring on a similar project In short and if it isn't clear my argument is that considering the appaulingly low budget of NASA, doing what Kepler was supposed to do is complete lunacy (and the guys who made the calculation for 43 earth like planets knew that, just look at the parameters they chose for their estimation), but that being said, the knowledge in R&D associated with the Kepler space telescope has far more value than the near useless data Kepler collected All the things the people who built Kepler learned while buuilding it won't need to be done all over again, given that this knowledge is properly recovered, treated and organised, while Kepler's planetary dataset will be made completely outdated by even a tiny marginal improvement on a Kepler 2.0
@frankfowlkes7872 2 роки тому
If another civilization several hundred light years from Earth ran this same experiment would they not find two planets around our sun (Earth and Venus) and possibly a third Mars (though too small) ? Maybe a Solar System like ours is rare. While I still think we are probably very rare and very lucky I think the jury is still out on Earth like planets.
@Comradez Рік тому
Only if our solar system's orbital plane happened to be in line with them. There's like a 199/200 chance that they'd look at our sun and conclude, "What a nice, quiet main sequence star with a constant output! Such a pity there aren't any terrestrial planets around it..."
@justanotherfella4585 8 місяців тому
27:33 Aaah “Hindsight is 20/20” One of my favourites!
@darger3 2 роки тому
Your voice has a soothing tendency, much like Ira Glass or Roman Mars; both incredible in their own right. You have wonderful and highly underrated channel.
@KingBritish 2 роки тому
Now I've got something to watch 👍🏻
@CoolWorldsLab 2 роки тому
👍
@MTd2 2 роки тому
What about the shortened program with high accuracy due broken reaction wills ? The mission had only 3 years or something which was enough for ate most 3 orbits. So, while you could detect all earth like on this time, it would be on the threshold of detection with the required 3 orbits.
@davidcarman1268 2 роки тому
This is the correct answer. Although Kepler was funded for 3.5 years, most programmes continue for longer. More repeat transits would have resolved many more candidates.
@anonymous-rb2sr 2 роки тому
I didn't follow the mission, but let me guess ball bearing failure? It's a known (AND SOLVED) flaw of satelites, this should not be a problem, let alone a major one it should be "well, let's just send the next 10 keplers this year with cermanic ball bearings" , not "OH NO OUR ONE AND ONLY INSUFFICIENT TELESCOPE SUFFERED A MINOR AND STATISTICALLY CERTAIN BREAKDOWN IT'S ALL OVER THE MISSION IS DONE" it's just bloody ridiculous
@anonymous-rb2sr 2 роки тому
@@davidcarman1268 it would have given a linear increase in the collected data as a factor of the extra years of operation, which is completely irrelevant considering the lack of ability of kepler compared to what is required to observe exoplanets is geometric You have 3.5 in 5000 and you complain "but it could have been 6 in 5000! If only!" makes no difference
@33114567 Рік тому
This is what YT was made for. Thank you and your team Dr!
@MMOLegend 2 роки тому
Absolutely great video, i watch them all.
@Cruelaid 2 роки тому
Cool Worlds makes my millennium ❤️
What about it!?
Переглядів 51 тис.
Ввести смертну кару політикам! Зрадники за кордоном, що робити? Волошин, Трінчер, Джозефіна Заліпуха
ВОЛОШИН
Переглядів 262 тис.
Около МЕТАЛЛО КОПА
Переглядів 32 тис.
Hi Dev! – Электроника
Переглядів 30 тис.