What is Cosmology?
43:06
7 годин тому
The Solar Neutrino Problem
37:53
День тому
The Realm of the Galaxies
5:28:46
14 днів тому
Energy Transport in the Sun
1:16:28
14 днів тому
Colliding and Interacting Galaxies
26:55
What is the Cosmic Redshift?
1:19:48
14 днів тому
Galaxy Evolution and Deep Surveys
30:53
Groups and Clusters of Galaxies
35:28
21 день тому
The Extragalactic Distance Scale
28:24
Stellar Spectral Classification
27:27
Місяць тому
The Cosmic Microwave Background
1:01:28
Місяць тому
Redshift and The Big Bang
51:56
Місяць тому
The Cosmological Principle
32:28
Місяць тому
Stellar Mass, Luminosity and Lifespan
27:26
Star Clusters and Stellar Evolution
34:28
Spectroscopic Parallax
33:25
Місяць тому
Stellar Radii
15:24
Місяць тому
КОМЕНТАРІ
@CatFish107
@CatFish107 5 годин тому
Oh, you have also now sparked my curiosity to learn celestial navigation. You've got me thinking about spherical trigonometry! Great job.
@CatFish107
@CatFish107 5 годин тому
Here's an anecdote regarding seeing the stars from a new perspective. The first time I used a night vision scope on a clear night for search and rescue, I happened to glance up at the sky. There are countless stars in the darkness that become visible with some light amplification far more than are visible with the naked eye. It was utterly awe inspiring, and extremely tempting to keep looking, rather than the far more pressing issue of searching the water surface for a lost boat.
@unclvinny
@unclvinny 9 годин тому
Comprehensive, thanks! Could you spell out sometime how photons losing momentum would result in a blurrier image? It’s kind of a side point for this topic, but it doesn’t seem obvious to me why it’s true.
@driverjeff1498
@driverjeff1498 9 годин тому
Not sure how it's a paradox. We are not emitting any light from earth and there is nothing for it to reflect off of
@SlyNine
@SlyNine 11 годин тому
Only if the galaxy is male tho.
@tarikattarikat2613
@tarikattarikat2613 11 годин тому
As a non-specialist, your lecture clarified a lot of things for me! Thank you for your work.
@nlo114
@nlo114 12 годин тому
Interesting, I shall watch the rest of the series. As a matter of interest, who or what is the figure laying face-down at 21:10 , and what is he/she doing there?
@cseguin
@cseguin 12 годин тому
I find it very interesting that the _only_ people who seem to have a gripe with the whole Pluto thing are Americans . . . get over it . . . you're not special.
@MyKharli
@MyKharli 14 годин тому
It's not dark, only to our eyes.
@deltalima6703
@deltalima6703 15 годин тому
Hubble constant and big bang and relativity solves this nicely, but I will continue watching anyways.
@edd.
@edd. 23 години тому
Thank you announcing that you are keeping the h_bar and c constants!! Finally!! Someone is keeping them in the equation!!🤣🤣🙌🏼🙌🏼👍🙌🏼
@GrendelFromDC
@GrendelFromDC 23 години тому
First
@Jaggerbush
@Jaggerbush 23 години тому
This channel is the gift that just keeps giving.
@Novastar.SaberCombat
@Novastar.SaberCombat День тому
Reflection is key. Unfortunately, the majority of mankind is simple incapable of it. Beyond that, most will run out of their most precious resource well prior to coming anywhere near the idea of True Enlightenment. 🐲✨🐲✨🐲✨ "Before I start, I must see my end. Destination known, my mind’s journey now begins. Upon my chariot, heart and soul’s fate revealed. In time, all points converge, hope’s strength resteeled. But to earn final peace at the universe’s endless refrain, We must see all in nothingness... before we start again." 🐲✨🐲✨🐲✨ -- Diamond Dragons (book I)
@Jaggerbush
@Jaggerbush День тому
Thanks for uploading, Jason!
@jasonhammonds7505
@jasonhammonds7505 День тому
Amazing teacher. How you walk through this material demonstrates your command. Thank you Professor Kendall.
@boriskuzmanovic779
@boriskuzmanovic779 День тому
umri
@TheUpGrayed
@TheUpGrayed День тому
Thank you, from one Jason to another!
@chucklynch5505
@chucklynch5505 День тому
One of the best books I've read in a long time is The Five Ages of the Universe, by Adams and Laughlin. If you like this topic it is a must read
@schr75
@schr75 2 дні тому
Great video as always but you have misunderstood a thing. The beep sound in the Apollo communications are called a Quindar tone and was used to switch between transmission modes on the tracking network, not as a kind of "over" signal. en.wikipedia.org/wiki/Quindar_tones
@JasonKendallAstronomer
@JasonKendallAstronomer День тому
Oh, thanks for the note! Great to know!
@KF1
@KF1 2 дні тому
The improved audio makes these way professional. Thanks for redoing these!
@astronomy-channel
@astronomy-channel 2 дні тому
Superb start to what will be epic! The story of the universe!
@edd.
@edd. 3 дні тому
This is epic timing. I’ve been saving up for her text book and it just arrived yesterday! Are you eventually going to combine all the videos into a playlist? I’m really excited and looking forward to going through this with you!
@JasonKendallAstronomer
@JasonKendallAstronomer 3 дні тому
I’m likely going to leave them as individual videos. But there is a playlist where I will put them all. ukposts.info/slow/PLyu4Fovbph6cX6Sv4DuLFbZxPv16M-0Om&si=BA_nEWJKrOjSdbDU
@edd.
@edd. 3 дні тому
Thank you!!
@charlesodonnell2993
@charlesodonnell2993 3 дні тому
Thank you! I need a solid review!
@giovannilp03
@giovannilp03 3 дні тому
Man that definition and description of cosmology in the intro was gorgeous
@JasonKendallAstronomer
@JasonKendallAstronomer 3 дні тому
Thank you kindly!
@Truth_Teller_101
@Truth_Teller_101 3 дні тому
It is very generous of you to share this and your expertise as a professor.
@blkwings69
@blkwings69 3 дні тому
Thanks.
@shashilwow
@shashilwow 3 дні тому
I'm excited!
@MitchKarajohn
@MitchKarajohn 3 дні тому
I love your enthusiasm and the way you communicate the subject
@markanderson5536
@markanderson5536 4 дні тому
ARP273 Is beautiful and my favourite
@nathan35uk
@nathan35uk 4 дні тому
Love your vids , keep them coming thanks 🙏
@deltalima6703
@deltalima6703 4 дні тому
What do you call a star with no arms and no legs in a pile of leaves? Russel What do you call the same star 10 billion years later? Pete How about a timelapse from one to the other? Hertzprung-Russel
@josephshaff5194
@josephshaff5194 4 дні тому
When do we separate from the Astronomy / Astrophysics Majors or do we ever really ? Running a dual Career.
@anotherplatypus
@anotherplatypus 4 дні тому
i followed gpt2 since before launch and those sun spot ejections ruined the experiment
@anotherplatypus
@anotherplatypus 4 дні тому
They were measuring Earth's frame dragging effect and suddenly had to deal with every component of every cuciut firing off because of a sun flaire... it was heart breaking
@anotherplatypus
@anotherplatypus 4 дні тому
they designed the experiment to give the data to everyone but it was useless after that
@anotherplatypus
@anotherplatypus 4 дні тому
It's so fun... after studying your videos I can watch other UKpostsrs so much better... you should call out people like ParalaxNick and other people you want to migrate us towards
@iiz67
@iiz67 4 дні тому
It's variable you know.
@d4v0r_x
@d4v0r_x 5 днів тому
yo mama so fat she broke trough the sloan great wall
@rudypieplenbosch6752
@rudypieplenbosch6752 5 днів тому
Thank you very much professor, very interesting, subscribed.
@artsmith1347
@artsmith1347 5 днів тому
A number of discoveries happened in the 1930s. The Great Depression was ongoing then. Yet money was found for esoteric research.
@JP-wx6uh
@JP-wx6uh 6 днів тому
Jason Kendall was an all-star Catcher for the Pirates back in the late 90's.
@JasonKendallAstronomer
@JasonKendallAstronomer 4 дні тому
And I had his fans emailing me out of the blue.
@josephshaff5194
@josephshaff5194 6 днів тому
Great observational clips of Lunar Eclipses Professor ! It's encouraging me to get out there. Especially after some modifications to my small Newtonian. Threw a true Parabolic Mirror in 114 mm, added a Dual Speed GSO Focuser that can accept 2 in. eyepieces, added small tracking motor, revamped Finderscope, Celestrons 114 EQ Astromaster improved ! I would like to inquire if you has yet tried the "Oculars", "Plug In", in Stellarium it has really helped me select Eyepiece and with redesign for Planet viewing. If not I would encourage giving it a try. I notice there is a bit more fuzzyness than my scope actually has on Jupiter and Saturn. I look forward to trying a 2.3 mm Wide Eyepiece f/ Celestron and a better than stock Secondary Mirror as fortune allows me. Cheers! Clear Skies! Unfortunately for me I'm in PNW and go off others observations throughout most of the yr. except for a couple months of the yr. Probably nothing short of amazing I would continue to opt. to Major in Physics!
@RideAcrossTheRiver
@RideAcrossTheRiver 6 днів тому
Astrophysics is fascinating.
@Radar23
@Radar23 7 днів тому
excellent.. I only discovered these recently and then all the remakes come out.. I'm overloaded with space.. amazing
@aformalevent
@aformalevent 7 днів тому
Thank you so much for making these videos. I appreciate what you do
@josephshaff5194
@josephshaff5194 7 днів тому
I mean once set up wiring harnesses are pretty much auto generated in 3D now except for maybe a couple hiccups here and there. lol !
@josephshaff5194
@josephshaff5194 7 днів тому
Dr. Kendall. Just wondering about the M&E Design of such Experiments and a skill in Design / Documentation will prove useful. It is handed off to Engineers at some point ? I hold kind of a rare amount of formal instruction in Mech 4 yrs HS + 2 yrs Deg. +13 yrs Contracting, I'd hate to see it go to waste and never use it again entirely. Some cool stuff in wiring and mech now.
@JasonKendallAstronomer
@JasonKendallAstronomer 4 дні тому
There are a lot of engineering jobs and internships at NASA. Never hurts to inquire
@p0lar_bear
@p0lar_bear 7 днів тому
so good
@KF1
@KF1 8 днів тому
Another Audio Triumph, Mr. Kendall
@thetobi583
@thetobi583 8 днів тому
And now to zone out and sleep while learning a thing or two from someone who teaches what they're talking about. Thank you, professor