Uploaded December 2019 | Updated September 2026, 2 weeks ago
We measure geologic time millions of years and cosmic time in the billions. These numbers seem impossible to understand, so let's get some perspective with a different unit: the galactic year.
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VIDEO ANNOTATIONS/CARDS
Solar System Model:
youtu.be/iGV4y2W2SOE
How old is the Universe?
youtu.be/AEdi4josuwo
Photosynthesis:
youtu.be/rvFMBRnR3ms
________________________________
RELATED YOUTUBE VIDEOS
Crash Course on Deep Time:
youtu.be/jDF-N3A60DE
It's Okay To Be Smart on Deep Time:
youtu.be/dI7SbZx_Qiw
MinutePhysics on Cosmic Time:
youtu.be/Cfg11qQwPzQ
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
patreon.com/ScienceAsylum
Advanced Theoretical Physics (Paperback):
lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
gumroad.com/l/ubSc
Merchandise:
scienceasylum.com
________________________________
HUGE THANK YOU TO THESE PATRONS
Warden of the Asylum:
YDT
Asylum Counselors:
Matthew O'Connor
Asylum Orderlies:
William Morton
Einsteinium Crazies:
Albert B. Cannon, LT MarshMan, Ken Davis, Wacky, Eoin O'Sullivan, Ilya Yashin
Plutonium Crazies:
Al Davis, Kevin MacLean, JKLMN Anderson
Platinum Crazies:
Kyle Bowles, Jon Adams, Mr. Orn Jonasar, Rick Dinning, Eugene Boone, Fletch, Felipe Cruz, Vittorio Monaco, Stephen Blinn, Mikayla Eckel Cifrese
________________________________
OTHER SOURCES
starchild.gsfc.nasa.gov/docs/StarChild/questions/question18.html
solarsystem.nasa.gov/planets/mars/by-the-numbers
solarsystem.nasa.gov/planets/jupiter/by-the-numbers
solarsystem.nasa.gov/planets/neptune/by-the-numbers
slate.com/technology/2013/03/vortex-motion-viral-video-showing-suns-motion-through-galaxy-is-wrong.html
space.com/263-milky-age-narrowed.html
space.com/22471-red-giant-stars.html
ncbi.nlm.nih.gov/pmc/articles/PMC2949000
________________________________
LINKS TO COMMENTS
youtube.com/watch?v=cep6eECGtw4&lc=UgzdwBOVpbQt0HlWUUh4AaABAg
________________________________
IMAGE CREDITS
Geologic Time Spiral:
commons.wikimedia.org/wiki/File:Geological_time_spiral.png
We measure geologic time millions of years and cosmic time in the billions. These numbers seem impossible to understand, so let's get some perspective with a different unit: the galactic year.
________________________________
VIDEO ANNOTATIONS/CARDS
Solar System Model:
youtu.be/iGV4y2W2SOE
How old is the Universe?
youtu.be/AEdi4josuwo
Photosynthesis:
youtu.be/rvFMBRnR3ms
________________________________
RELATED YOUTUBE VIDEOS
Crash Course on Deep Time:
youtu.be/jDF-N3A60DE
It's Okay To Be Smart on Deep Time:
youtu.be/dI7SbZx_Qiw
MinutePhysics on Cosmic Time:
youtu.be/Cfg11qQwPzQ
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
patreon.com/ScienceAsylum
Advanced Theoretical Physics (Paperback):
lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
gumroad.com/l/ubSc
Merchandise:
scienceasylum.com
________________________________
HUGE THANK YOU TO THESE PATRONS
Warden of the Asylum:
YDT
Asylum Counselors:
Matthew O'Connor
Asylum Orderlies:
William Morton
Einsteinium Crazies:
Albert B. Cannon, LT MarshMan, Ken Davis, Wacky, Eoin O'Sullivan, Ilya Yashin
Plutonium Crazies:
Al Davis, Kevin MacLean, JKLMN Anderson
Platinum Crazies:
Kyle Bowles, Jon Adams, Mr. Orn Jonasar, Rick Dinning, Eugene Boone, Fletch, Felipe Cruz, Vittorio Monaco, Stephen Blinn, Mikayla Eckel Cifrese
________________________________
OTHER SOURCES
starchild.gsfc.nasa.gov/docs/StarChild/questions/question18.html
solarsystem.nasa.gov/planets/mars/by-the-numbers
solarsystem.nasa.gov/planets/jupiter/by-the-numbers
solarsystem.nasa.gov/planets/neptune/by-the-numbers
slate.com/technology/2013/03/vortex-motion-viral-video-showing-suns-motion-through-galaxy-is-wrong.html
space.com/263-milky-age-narrowed.html
space.com/22471-red-giant-stars.html
ncbi.nlm.nih.gov/pmc/articles/PMC2949000
________________________________
LINKS TO COMMENTS
youtube.com/watch?v=cep6eECGtw4&lc=UgzdwBOVpbQt0HlWUUh4AaABAg
________________________________
IMAGE CREDITS
Geologic Time Spiral:
commons.wikimedia.org/wiki/File:Geological_time_spiral.png
