
Naked Eye Observations: Crash Course Astronomy #2
Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
Today on Crash Course Astronomy, Phil invites you to head outside and take a look at all the incredible things you can see with your naked eye.
Phil gives the course a send off with a look at some of his favorite topics.
Our Universe’s days are numbered.
Thanks to the wonders of physics, we can map a timeline of the universe’s history.