Astronomy Cast Ep. 522: Judging Age & Origins, part 1 - Earth Rocks

By susie - March 18, 2019 at 4:51 PM UTC | Planetary Science

[embed]

[/embed]

People always want to know how old everything is. And more specifically, they want to know how we know how old everything is. Well, here at Astronomy Cast, it's our job to tell you now only what we know, but how we know what we know. And today we'll begin a series on how we know how old everything is.

This is part one of a double episode.

We usually record Astronomy Cast every Friday at 3:00 pm EST / 12:00 pm PST / 20:00 PM UTC. You can watch us live on

AstronomyCast.com

, or the

AstronomyCast YouTube page

.

Visit the

Astronomy Cast Page

to subscribe to the audio podcast!

If you would like to support Astronomy Cast, please visit

our page at Patreon here - https://www.patreon.com/astronomycast

. We greatly appreciate your support!

If you would like to join the Weekly Space Hangout Crew, visit

their site here

and sign up. They're a great team who can help you join our online discussions!

Want to support CosmoQuest? Here are specific ways you can help: * Donate! (Streamlabs link)

https://streamlabs.com/cosmoquestx

  • Buy stuff from our Redbubble

https://www.redbubble.com/people/cosmoquestx

  • Help us find sponsors by sharing our program and fundraising efforts through your networks
  • Become a Patreon of Astronomy Cast

https://www.patreon.com/astronomycast

  • Sponsor 365 Days of Astronomy

http://bit.ly/sponsor365DoA

  • A combination of the above!