Cosmic Tails (That Aren’t From Comets)
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День томуComets are famous for having space tails. But they're not the only ones! Asteroids, planets, and even stars can rock tails of their own.
Hosted by: Stefan Chin (he/him)
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Sources:
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www.nasa.gov/directorates/smd...
www.nasa.gov/solar-system/ast...
science.nasa.gov/solar-system...
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iopscience.iop.org/article/10...
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www.nytimes.com/2021/03/04/sc...
www.newscientist.com/article/...
earthsky.org/space/how-to-cap...
www.sciencealert.com/the-tail...
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chandra.si.edu/photo/2016/pluto/
chandra.si.edu/press/16_relea...
www.sciencedirect.com/science...
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iopscience.iop.org/article/10...
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Images:
www.gettyimages.com/
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commons.wikimedia.org/wiki/Fi...
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www.eurekalert.org/multimedia...
commons.wikimedia.org/wiki/Fi...
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commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.nasa.gov/image-article/pl...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
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www.eurekalert.org/multimedia...
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iopscience.iop.org/article/10...
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commons.wikimedia.org/wiki/Fi...
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www.eso.org/public/videos/eso...
@SciShow Місяць тому
Hey! You’re not imagining things: we did originally post a Rocks Box episode today. It had some audio problems that we're working on and we'll hopefully have that up for you tomorrow!
@ARealMensch00 Місяць тому
wow! will you do a science episode on how really big bomds work? the 2klb ones are the coolest TBH. oh and DFTBA!
@AudraK Місяць тому
I thought I saw a rock box video! Although I had a feeling that it had some issue with it, but I’m grateful that y’all still posted a substitute video anyways! Thanks!!
@THE-X-Force Місяць тому
Still though .. I am imagining things.
@Casper.Raptorr Місяць тому
I got to watch both. I didn't think the audio was that bad but i read the comments on it. Thanks for the wonderful content.
@nebulan Місяць тому
Oh I just thought we got two videos in one day! But I'm glad you're fixing the audio
@hyacinthpixie8054 Місяць тому
I'm disappointed. The thumbnail made me believe we were going to talk about a cosmic good boi.
@slwrabbits Місяць тому
It took me half the video to realize that no, they were not going to talk about fluffy tails on fuzzy animals. I was very, very sad.
@nixienooo Місяць тому
I have a cat named Comet. He has a tail lol
@7-ten Місяць тому
If he ever loses his tail you'll have to change his name😮
@Lyriath Місяць тому
That thumbnail was just perfect, scishow team sense of humor is awesome ❤
@Bildgesmythe Місяць тому
I was just watching fur shed from our dog's wagging tail.
@Marantzzz Місяць тому
Puurfect
@KiriKiriKiki Місяць тому
everyone like the oc as an indicator of how much of a dOg pErson you are.
@gregoryturk1275 Місяць тому
Yes very
@gregoryturk1275 Місяць тому
Hope they don’t change it 😮😮😢😢😂😂😅😅😊😊
@Master_Therion Місяць тому
Wow, the planet WASP-69b has a tail that's 580,000 km long. But the real question, is there a stinger at the end?
@jordoneaton7083 Місяць тому
I would think a WASP would be weilding a Bible or some Tax Codes
@simonehudspeth861 Місяць тому
@@jordoneaton7083 plot twist the "stinger" is a comet aimed at us lol
@jordoneaton7083 Місяць тому
@@simonehudspeth861 Probably a fragment of Encke or something related. (It has been hypothesized that it was a chain of fragments from Encke that exploded over the ice sheet, flash boiling hundreds of millions of cubic meters of the glacial sheet and causing a catastrophic world wide rise in sea level that would have been seen by everyone, lending to such myth and legend as Gilgamesh and Noah et. al. See: Younger Dryas)
@charlessarver1637 Місяць тому
🐝🐝🐝🐝🐝🐝🐝🐝🐝🐝🐝🐝
@Htt.ps-Chaos Місяць тому
it's so wild that a system of 2 dead stars orbiting each other can move so fast they create a bow shock.
@schrodingerscat4503 Місяць тому
Ikr!!?!??!! It’s space! And massive gravitational bodies! How does that even work???!
@meetaverma8372 Місяць тому
sometimes I wonder how hades feels when he sees us human naming our dogs after him, and not his pup?
@ZrJiri Місяць тому
He's probably still pissed that Hercules got his own TV show and he didn't.
@meetaverma8372 Місяць тому
@@ZrJiri not enough stories, but the show could be about underworld mishaps and then Hades solving those issues
@thomasridley8675 Місяць тому
A tale of tails.
@hellyeah_ellajane Місяць тому
WAY TOO ROBUST TO BE MADE OF JUST DUST! (My new motto, btw.)
@iniminimoshimo Місяць тому
the line about hoping that aliens looking our way see something spectacular when our sun blows up made me strangely emotional
@rhouser1280 Місяць тому
Got to see Halley’s comet when I was young, hoping I get the chance to see it a second time but I doubt it. Although I just watched “Don’t look up” & comets seem a little scarier now
@LightBlueVans Місяць тому
1:42 🎶too robust, too robust for DUST🎶
@MT-ur5dp Місяць тому
Young stars can produce tails (look up proplyd on wikipedia) and pulsars sometimes have tails in x-rays. I guess galaxies that are affected by ram pressure also can have tails. But because they are called jellyfish galaxies you could call them “tentacles“ and not tails.
@aldenconsolver3428 Місяць тому
I hope that Pluto's tail wags when somebody says nice things to it like maybe "Good Planet" and scratches it behind its ears. Then of course all of its moons would gather around an need their "Good little moons". Somewhat the same (as dog owners know) as the truth of the old beatles lyric ""And in the end The love you take Is equal to the love you make"
@nolanwhite1971 Місяць тому
Pluto isn't named after the Disney character, though. You'd think SciShow would know better than to say something like that.
@GregSamsa999 Місяць тому
10/10 Thumbnail
@loganl3746 Місяць тому
1:24 There's something about consolidated and sped up space object footage that makes me dizzy 😵💫 Same thing with footage from that asteroid we landed a lander on and you can see the "sky" of stars spinning around it. I love it so much tho!
@SciMinute Місяць тому
Adorable thumbnail!
@angelikalindenau943 Місяць тому
❤ love that cover pic!
@196cupcake Місяць тому
You guys should try to sell merch. along the lines of a play on a line from Jaws, "we're going to need a bigger X." Like, sell a onesie that says "we're gonna need a bigger x-ray telescope."
@Conus426 Місяць тому
Stefans back! Would be cool to have him maybe as a guest on Scishow tangents some day again
@eileen7303 Місяць тому
that was super cool about Mira!
@dr.k1012 Місяць тому
In love with the thumbnail.. ❤😊
@aniksamiurrahman6365 Місяць тому
Mayera Yeee, Mayera Ahhh, Mayera Ohhh, Mayera Ah Ah! ..... Stellar Nma Numa.
@ceejay0137 8 днів тому
The reason Mercury's tail is brightest about 16 days after perihelion is that it depends on Mercury's radial velocity (i.e. its speed towards or away from the Sun). There are absorption lines at the sodium wavelengths in the Sun's spectrum, and at perihelion the wavelengths where the sodium would absorb are sitting exactly on the absorption lines so there's not much light to excite the sodium. As Mercury moves away from the Sun after perihelion, the Sun's spectrum gets Doppler-shifted so the sodium around Mercury can get excited. That excitation is a maximum at 16 days.
@CLipka2373 Місяць тому
"The answer, my friend, is blowing in solar wind..."
@limalicious Місяць тому
If I had a nickel for every time they saw an x-ray from Pluto's tail, I'd have two nickels, which isn't a lot, but it's weird that it happened twice.
@paranoiarpincess Місяць тому
Pluto deniers: Pluto isn't a planet hurr hurr hurr. Me: you know, dwarf _planets_ are still *planets* right...?
@hzaagman8005 Місяць тому
03:20 Maybe for the same reason summers here on Earth get hottest in july (northern hemisphere) and january (southern hemisphere), even though the sun is highest in the sky around 21 june (NH) and 21 december (SH).
@rimibchatterjee Місяць тому
Hot Neptunes would be a great name for a band.
@mcv2178 Місяць тому
It would also have gotten me to eat my veggies as a kid if they had been called that : )
@meetaverma8372 Місяць тому
hot Poseidon
@ZrJiri Місяць тому
@@meetaverma8372that sounds more like a young adult tv fantasy drama character 😂
@meetaverma8372 Місяць тому
@@ZrJiri fair
@paraceratherium255 24 дні тому
9:41 or in other words, 1/8th a average CVS receipt.
@KlaudiusL 27 днів тому
Not need to go to far to find comet-like planet. Even when it's faint, solar wind strip away molecules from our planet upper atmosphere, making an impressive tail, long enough to reach the moon and beyond. One hypothesis how the moon got water and why's is located on the poles.
@THE-X-Force Місяць тому
I don't know for sure .. but I think he's standing in front of a green screen.
@CorpusOrganic Місяць тому
could Mercury's be some sort of condensation? being why it appears when it does
@MotoMattMania Місяць тому
wasp-69b, nice.
@ailaG Місяць тому
More information in the comets.
@connecticutaggie Місяць тому
So, does that mean the moon has a lot of Sodium?
@filonin2 Місяць тому
The light parts are mostly made of feldspar, which comes in potassium and sodium varieties. Very similar to our own crust.
@dingochamberlain4016 Місяць тому
Is a lunar sodium trail why a full/new moon has a yellow tinge to it? I think it’s the new moon that has the yellow tinge. I can’t remember at the moment.
@s.m.sanbim-sifat_official Місяць тому
Is SciShow-Space really dead?
@nariu7times328 Місяць тому
I am going to try and tell Phaethon what to do
@Heothbremel Місяць тому
❤❤❤❤❤❤❤❤❤❤❤❤❤❤
@risingpath Місяць тому
Butt scratches?!?! 🐶
@sagemagick Місяць тому
phaethon ?? Come on people clearly that asteroid should have been named Icarus opportunity missed imo
@johngz3413 Місяць тому
Mercury's tail takes a much longer time than average because it has to work from much deeper into the planet maybe?
@rimibchatterjee Місяць тому
So does sodium vapour glow in space like streetlights?
@rimibchatterjee Місяць тому
Ah you answered my question.
@skylerbowerbank5847 Місяць тому
What came first? Pluto the planet being discovered or pluto the dog?
@dr.blockcraft6633 Місяць тому
Pluto the Planet. February 18th, 1930 Pluto the Dog debuted September 5, 1930, and Didn't recieve The name Pluto until April of 1931.
@lady_draguliana784 Місяць тому
Regarding Mercury's sodium tail peaking later than it's nadir, I'd say it's likely that the source of the tail is deep under the surface, meaning that the peak energy of it's closest approach needs time to "soak" down to the depths of the sodium sources, based on the rate of thermal conduction of the medium around and above it... basic thermodynamics...
@ashleeminnow8453 Місяць тому
Whoa I'm so early :D
@nHans Місяць тому
Hi Stefan, no offense, but "Chandra" isn't French, and it isn't pronounced as "Shandra" anymore than "Chin" is pronounced as "Shin."
@ellieshine Місяць тому
How can WASP69b be larger than Jupiter, but only 90 earth masses?
@markzambelli Місяць тому
When gas giants are relatively low mass they have large volumes and lower-end densities... but as they get more massive their gravitational pull increases so much that they become smaller as their density vastly increases. In fact, by the time they are as massive as Jupiter they don't get appreciably larger even though they are pulling in more material, they just get more massive... it is for this reason that Brown Dwarfs, even though they are tens to a hundred times more massive than Jupiter, are roughly the same size as Jupiter (just a bit bigger). For WASP69b there is an added factor... its proximity to it's hot parent star (it orbits in less than 4 days!) causes so much heating the planet's atmosphere is very 'puffed-up'... move it out to a distance where it would orbit in months to years and as it cooled it would shrink in volume and be appreciably less than Jupiter.
@culwin 12 днів тому
I think it's spelled Mira... chapters are wrong...
@PatrickLongblkwhtrbbt Місяць тому
9 seconds ago? Wow youtube delivered early
@xadahgla Місяць тому
Piano!
@ScortchedYFronts Місяць тому
Why does a comet have a tail? If source of tail is moving through.....nothing.....the cloud should get bigger and bigger in the shape of a ball/sphere. It appears the source is moving through something because the ejections are held in place as comet moves away. Why does the tail fade? Again....more evidence source is moving through something.
@tywag5609 Місяць тому
I feel like you could’ve worked in a tale as old as time somewhere in there
@clericregnor Місяць тому
it's okay to use a pronunciation key
@Nouvellecosse Місяць тому
Hmm... no comet
@justayoutuber1906 Місяць тому
I like looking at tail.
@isaacbrown4506 Місяць тому
When are we going to get a cool astrophysicist who will name an exoplanet Planet Vegeta?
@sophiejones3554 Місяць тому
There is a web site where you can submit name suggestions for exoplanets. Don't count on seeing them actually pick your submission any time soon though. They aren't in much hurry to name planets besides the few which are candidates for extraterrestrial life.
@isaacbrown4506 Місяць тому
@sophiejones3554 I'll have to check it out anyways then lol I'm just tired of seeing things like JMX-102934+2G 😂
@bbbenj Місяць тому
Thanks. #SaveChandra
@fimbulsummer Місяць тому
Click bait! I was promised video of tails, good sir, TAILS!
@arnaudt3935 Місяць тому
I'm sorry, but the sound of your videos is horrible.. Please, lower the amplification, don't make your sound like an advertising. I know, not every body ear that, espiacially depending on device you are using. But please, don't boost the sound that much, it is far too much. Except that, I love the content you produce. So thank you !
@bunnygirl2448 Місяць тому
I wish I was in a “coma” lol ;)
@marcelguimaraes Місяць тому
Is this video’s audio ai generated or it had some kind of problem during rendering?
@alien9279 Місяць тому
The rocks video had bad audio too. Just a wrong mic situation. They got mics on the cam and the actual mic . Main probably wasn't on
@General12th Місяць тому
Hi Stefan! I wish people were more willing to consider a future where we _were_ around a billion years from now instead of assuming we're all doomed.
@theflyingmoustachio Місяць тому
Even if we survive and thrive into the future, *we* won't exist in a billion years. Whatever evolves from us will exist, but they will be very different from any human today. Everything inevitably stops existing, even the universe.
@General12th Місяць тому
@@theflyingmoustachioVery true, though when people talk about us not being around in the future, I don't think they're talking about _Homo sapiens_ specifically.
@KageSama19 Місяць тому
You guys forgot the galactic version of tails; Streamers. Not to mention that potential tail of stars from a rogue supermassive blackhole slamming into intergalactic gas.
@196cupcake Місяць тому
I'm not a fan of calling comets and asteroids "left overs." Where this becomes more than a point about terminology is how survivorship bias makes them less than perfectly representative of the protoplanetary disk, and in ways that we couldn't anticipate. Something about them was different. Otherwise, they would have already been part of earth, or one of the other planets. They might be representative, but that requires observation, and since no one was around at the time ... there in lies the problem. I'm sure some proportion of asteroids really are representative, but others might not be.
@KiriKiriKiki Місяць тому
I prefer if Astro Alexandra came on to talk about this. She's talked about it before and given her really cool collaboration, it'd be great to see her come on long term.
@ARealMensch00 Місяць тому
Can we have a video on the science of ethnic cleansing?
@ARealMensch00 Місяць тому
It would be relevant because of the you know what over in the the middle east sci show
@nola281 Місяць тому
There's a whole psychological story behind how normal, caring people become monsters. It would be a timely video given the state of the world. It's easier than you would think to get ethic cleansing started, scary easy.
@ARealMensch00 Місяць тому
@@nola281 yeah its crazy how people with a giant platform can be silent during such times
@General12th Місяць тому
There's no science to justify such atrocity if that was what you were looking for, "Real Mensch".
@abarrazarios Місяць тому
Transcomet
@johnparadox9429 Місяць тому
A tale of tails.
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