Up Next
Back to Show
Crash Course Astronomy
Naked Eye Observations: Crash Course Astronomy #2
Season 1
Episode 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.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
11:44
Take a look at the two-octillion ton star that rules our solar system.
9:57
Phil takes a look at the explosive history of our cosmic backyard.
9:46
What is the relationship between tides and gravity?
9:41
Phil looks at how gravity plays out across the universe.
11:59
Today Phil explains how telescopes work
10:10
"But what about eclipses!?"
9:45
Phil takes you through the cause and name of the Moon's phases.
9:28
Take a look at the cyclical phenomena that we can see at work in the universe.
12:11
Get to know host Phil Plait and begin with answering a simple question: what is astronomy?