
Deep Time: Crash Course Astronomy #45
As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered.
As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered.
Phil gives the course a send off with a look at some of his favorite topics.
Thanks to the wonders of physics, we can map a timeline of the universe’s history.
Most of the universe is made up of a mysterious entity that pervades space: dark energy.