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As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few trillion years, protons will decay and matter will dissolve after a thousand trillion trillion trillion years, black holes will evaporate after 10^92 years, and then all will be dark. But there is still hope that a new Universe will be born from it.
Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster
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Hawking Radiation Mechanism resources:
https://en.wikipedia.org/wiki/Hawking_radiation
http://math.ucr.edu/home/baez/physics/Relativity/BlackHoles/hawking.html
http://casa.colorado.edu/~ajsh/hawk.html
http://physics.stackexchange.com/questions/154647/how-does-the-hawking-radiation-mechanism-cause-a-black-hole-to-lose-its-mass
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Table of Contents
The Universe’s Days Are Numbered 0:32
Stars Eventually Die Out 3:02
Protons Eventually Decay 5:04
Bye-Bye Black Holes After 10^92 Years 7:49
With Death Comes Life 12:04
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PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
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Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
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PHOTOS/VIDEOS
Hubble ACS SWEEPS Field http://hubblesite.org/gallery/album/star/star_field/pr2011016b/ [credit: NASA, ESA, W. Clarkson (Indiana University and UCLA), and K. Sahu (STScI)]
Flare http://www.nasa.gov/sites/default/files/thumbnails/image/dg_cvn_flare_final_4k_0.jpg [credit: NASA’s Goddard Space Flight Center/S. Wiessinger]
Hubble Views Stellar Genesis in the Southern Pinwheel http://hubblesite.org/newscenter/archive/releases/2014/04/image/a/ [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)]
White Dwarf http://www.nasa.gov/multimedia/imagegallery/image_feature_468.html [credit: NASA, ESA, H. Bond (STScI) and M. Barstow (University of Leicester)]
Neutron Star Illustrated https://commons.wikimedia.org/wiki/File:Neutron_star_illustrated.jpg [credit: NASA, Casey Reed – Penn State University]
Black Holes: Monsters in Space http://www.nasa.gov/mission_pages/nustar/multimedia/pia16695.html [credit: NASA/JPL-Caltech]
Binary Neutron Star Video https://nasaviz.gsfc.nasa.gov/vis/a030000/a030500/a030569/slide_04-B3_CWDB_inspiral.mp4 [credit: NASA]
Giant Elliptical Galaxy NGC 1316 in Fornax Cluster https://www.eso.org/public/images/eso0024a/ [credit: ESO]
Proton Aurora http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20099 [credit: NASA/Goddard Space Flight Center Conceptual Image Lab]
A Race Round a Black Hole http://www.nasa.gov/centers/goddard/universe/blackhole_race.html [credit: NASA/Dana Berry, SkyWorks Digital]
The Big Bang http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10128 [credit: NASA]
Hubble Ultra Deep Field 2014 http://hubblesite.org/newscenter/archive/releases/2014/27/image/a/ [credit: NASA, ESA, H. Teplitz and M. Rafelski (IPAC/Caltech), A. Koekemoer (STScI), R. Windhorst (Arizona State University), and Z. Levay (STScI)]
Galaxy http://apod.nasa.gov/apod/ap150614.html [credit: Subaru Telescope (NAOJ), Hubble Space Telescope, Robert Gendler]
One star, many stars (M13) http://www.deepskycolors.com/archive/2011/05/04/one-star-many-stars-M13.html [credit: Rogelio Bernal Andreo]
Earth https://www.nasa.gov/content/goddard/earth-from-space-15-amazing-things-in-15-years [credit: NASA’s Earth Observatory]
Explosion video [credit: Shutterstock / Richard Finch]
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So the cosmic reboot expands at the speed of light … but which one ? Our old one , the maybe new speed of light, maybe there is no speedlimit in the new universe…. Two physics actually literally colliding , how could you not love science!
PHIL SAID DOOBIE-DO ^_^
This was the most interesting/saddest video ever. Mix feeling now =?
how can they confidently state the universe is 14 billion years..when we don`t see the edge of this universe. yes..i know about wmap, planck and the background radiation. but they are basing this theory upon layers of other theories that all can be wrong. don`t be surprised if this changes with a big number a few years from now. I would respect these scientists a lot more if they didn`t produce these things as facts. because they clearly aren`t
The thought of Crash Course Astronomy ending soon makes me sick.
On to Crash Course Pornography!
Time is a tool you can put on a wall, or wear it on your wrist.
The past is far behind us, the future doesn't exist.
I feel small. Really small.
I've had the thought before that our expansions and colapses might be like heartbeats. As if our entire universe is a cell in the heart of what some would call God.
Just mind blowing.
If time is just evolution of entropy, shouldn't time kind of stop when the last particle decays and the complete equilibrium stage begins
I love how in the middle of a very technical explanation he refers to the "doobly do" in the description.
I love how in the middle of a very technical explanation he refers to the "doobly do" in the description.
Please don't end this Crashcourse-Series before we have at least reached the end of the Stelliferous Era! That would be great, thanks!
How can there be more universes if the our universe is infinite and expanding into nothing? Is that not true? Also what about singularities?
A universe whose fires and warmth are going out, slowly being replaced by inevitable cold, darkness… Dark Souls, anyone?