Ep. 717: Understanding the Ages of Distant Cosmic Objects

How old is that star? That planet? That nebula? Figuring out the ages of astronomical objects is surprisingly challenging. Fortunately, astronomers have developed a series of techniques they can use to work out the ages of stuff.

Our Hosts

Fraser Cain
Universe Today

Dr. Pamela Gay
CosmoQuest

Meet the Team

  • Beth Johnson, Project and Content Manager
  • Richard Drumm, Audio Engineer
  • Ally Pelphrey, Video Engineer

Take a Listen!

17 seasons and more than 600 episodes await.

Ep. 531: Australian Indigenous Astronomy

Ep. 531: Australian Indigenous Astronomy

This week, we focus on the archaeoastronomy of another part of the world, this time from the indigenous people of Australia. Another group of people whose lives depended on knowing what was happening in the sky from season to season. In this episode we mentioned...

Ep. 530: Astronomy of the Andes – Then and Now Pt. 2

Ep. 530: Astronomy of the Andes – Then and Now Pt. 2

South America, especially the Atacama Desert in Chile has become one of the best places in the world to put a telescope. It's dry, high, and the nights are clear. Today we'll talk about the monster telescopes already in operation in this region, and the big ones...

Ep. 530: Astronomy of the Andes – Then and Now Pt. 2

Ep. 529: Astronomy of the Andes – Then and Now Pt. 1

The Andes mountains in South America are a hotspot of astronomy today, but ancient peoples knew it was a great place for astronomy and lived their lives in tune with the night sky. Today we'll learn all about what they knew, and how they mapped the movements of the...

Ep. 528: Modern Astronomy of the American Southwest

Ep. 528: Modern Astronomy of the American Southwest

Last week we talked about the ancient astronomy of the American Southwest. But this is actually Pamela’s stomping grounds, and she’s spent many a night perched atop mountains in this region staring in the night sky with gigantic telescopes. How does astronomy get done in this region today?

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