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!

Be Smart show's poster

Science and Nature

The Impossible Hugeness of Deep Time

Join Joe Hanson as he explores curiosity and illuminates the science behind… well, everything.

The Impossible Hugeness of Deep Time

Season 7 Episode 2 | 9m 5s

Humans have a hard time with really big numbers, especially when it comes to DEEP TIME. The history of the Earth took a lot longer than you think, trust me. But I’m here to help you put it in perspective. With some string.

share

Be Smart

Watch more episodes

Could You Be a Chimera? (ASL)

Could You Be a Chimera?

How to be Crushed by the Atmosphere!

Air. I bet you never even notice that it’s there.

Unraveling the Great Butterfly Migration Mystery

The monarch butterfly migration is one of nature’s greatest events.

Subscribe to Our Newsletters

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

Set Your Preferences >