Broadcast Outage: We're investigating a broadcast transmission failure affecting the San Luis Valley from Antonito in the south to Salida in the north. We're working to resolve this issue. You can stream our live broadcast HERE or via the RMPBS+ App.

Stream live and on-demand content now on our new app:

RMPBS+

Donate

Help tell more stories in 2026 - make a year-end gift!

Crash Course Astronomy show's poster

Science and Nature

Crash Course Astronomy

The Gravity of the Situation: Crash Course Astronomy #7

Welcome to school without the classroom! Join host Phil Plait and discover everything there is to know about the cosmos.

The Gravity of the Situation: Crash Course Astronomy #7

Season 1 Episode 7 | 9m 41s

Phil looks at how gravity plays out across the universe.

share

Crash Course Astronomy

Watch more episodes

Crash Course Astronomy

Life in the Universe: Crash Course Astronomy #46

Phil gives the course a send off with a look at some of his favorite topics.

Crash Course Astronomy

The Oort Cloud: Crash Course Astronomy #22

We're heading to the outskirts of the solar system.

Crash Course Astronomy

Meteors: Crash Course Astronomy #23

What the difference between a meteor, meteorite, and meteoroid?

Subscribe to Our Newsletters

Get trusted Colorado stories, programs, and events from Rocky Mountain PBS straight to your inbox.

Set Your Preferences >