Astronomy Cast – Episode 247: The Ages of Things

This is going to be one of the “how we know what we know” kind of shows. How do scientist determine the age of things? How do we know the age of everything from stone tools, to the age of the Earth, to the age of the very Universe.

You can watch us record Astronomy Cast live every Monday at 12:00 pm PDT (3:00 pm EDT, 2000 GMT). Make sure you circle Fraser on Google+ to see it show up in the feed. You can also see it live over on our YouTube channel.

If you’d like to be notified of all our live events, sign up for our notification email at Cosmoquest. You can check out our calendar here.

Fraser Cain

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay. Here's a link to my Mastodon account.

Recent Posts

New Study Examines Cosmic Expansion, Leading to a New Drake Equation

In 1960, in preparation for the first SETI conference, Cornell astronomer Frank Drake formulated an…

29 minutes ago

Pentagon’s Latest UFO Report Identifies Hotspots for Sightings

The Pentagon office in charge of fielding UFO reports says that it has resolved 118…

56 minutes ago

A New Way to Detect Daisy Worlds

The Daisy World model describes a hypothetical planet that self-regulates, maintaining a delicate balance involving…

2 hours ago

Two Supermassive Black Holes on the Verge of a Merger

Researchers have been keeping an eye on the center of a galaxy located about a…

4 hours ago

Interferometry Will Be the Key to Resolving Exoplanets

When it comes to telescopes, bigger really is better. A larger telescope brings with it…

6 hours ago

A New Mission To Pluto Could Answer the Questions Raised by New Horizons

Pluto may have been downgraded from full-planet status, but that doesn't mean it doesn't hold…

6 hours ago