Could the Universe End by Tearing Apart Every Atom?

Published on April 17, 2019
38

Captions provided by CCTubes – Captioning the Internet! Of all the unlikely ends of the universe, the Big Rip has to be the most spectacular. Galaxies ripped to shreds, dogs and cat first living together, then tragically separated by the infinitely accelerating expansion of space on subatomic scales. Good thing it’s not going to happen. Or is it?

Check out the new Space Time Merch Store!
https://pbsspacetime.com/

Support Space Time on Patreon
https://www.patreon.com/pbsspacetime

#bigrip #endoftheuniverse #spacetime

Learn More About Dark Energy Here:
https://www.youtube.com/playlist?list…

Hosted by Matt O’Dowd
Written by Matt O’Dowd
Graphics by Aaron Halevy
Directing by Andrew Kornhaber

The universe is expanding, and that expansion is accelerating. We don’t know what’s causing that acceleration, but that hasn’t stopped us from giving it a name. We call this unknown influence dark energy. The observed acceleration is, for the most part, nicely described with a constant density of dark energy – the same amount of this stuff in every block of space. Which means if you increase the volume you increase the overall amount of dark energy – hence accelerating expansion. Mathematically we describe a constant energy density with the cosmological constant in the equations of Einstein’s general theory of relativity. But what if dark energy is NOT constant? What if the energy density in each patch of space increases over time? In that case, the acceleration itself could be … accelerating. That would be bad.

Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:

Big Bang:
Anton Lifshits
coolascats
David Nicklas
Fabrice Eap
Juan Benet
Justin Lloyd
Tim Davis

Quasar:
James Flowers
Mark Rosenthal
Tambe Barsbay
Vinnie Falco

Hypernova:
chuck zegar
Danton Spivey
Donal Botkin
Edmund Fokschaner
Jens Theisen
John Hofmann
Jordan Young
Joseph Salomone
kkm
Mark Heising
Matthew O’Connor

Thanks to our Patreon Gamma Ray Burst Supporters:

Alexey Eromenko
Antonio Ruiz
Bradley Jenkins
Brandon Labonte
Buruk Aregawi
Carlo Mogavero
Daniel Lyons
David Behtala
David Crane
David Schmidt
Dustan Jones
Geoffrey Short
Greg Weiss
Jack Frosch
James Hughes
James Quintero
Jinal Doshi
JJ Bagnell
John Webber
Jon Folks
Jonah
Joseph Emison
Josh Thomas
Kenneth F Leonard
Kevin Warne
Kyle Hofer
Malte Ubl
Mark Vasile
Nathan Hitchings
Nicholas Rose
Nick Virtue
Ratfeast
Richard Broman
Scott Gossett
Sigurd Ruud Frivik
Tim Crookham
Tim Stephani
Tommy Mogensen
سلطان الخليفي

View More »
Category Tags:
CCTubes - get your videos captioned!