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. 520: Transients: What They Are and Why They Matter, Part 2

Ep. 519: Transients: What They Are and Why They Matter

Astronomers have found that sometimes the Universe changes. Things move, things explode, things get brighter or dimmer. In fact, knowing this has helped astronomers discover some very important aspects of the Universe. Today we begin a two part series on Transients and their role in astronomy.

Ep. 518: When the Universe tried to Declare War

Ep. 518: When the Universe tried to Declare War

We always say the Universe is trying to kill us. But there was this one time, when the Universe used our own fear of nuclear attack against us, nearly setting off a global nuclear war. Nice try Universe, we’re on to you now.

Ep. 517: Fritz Zwicky and the Zwicky Transient Facility

Ep. 517: Fritz Zwicky and the Zwicky Transient Facility

One of the most influential astronomers in the 20th Century was Fritz Zwicky. He had his hand in the discovery of dark matter, gravitational lensing, supernovae and neutron stars. And he also worked on a few more controversial ideas like, uh, tired light. Let’s learn more about Zwicky.

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