Astronomy Cast

Take a facts-based journey through the universe.


Take a listen

13 Seasons and more than 500 episodes await.

Ep. 591: Space Junk

Ep. 591: Space Junk

Remember the good old days, where there were only a few thousand living and dead satellites? Those days are long over. We’re now entering an era where there will be tens of thousands of satellites, not to mention the spent rocket boosters and other space junk. What kind of a risk do we face and what can be done about it?

More Information
Ep. 590: Lunar Hazards: Dust, Radiation, and More

Ep. 590: Lunar Hazards: Dust, Radiation, and More

2024 can’t come soon enough. You know, that’s the year when humans will set foot on the Moon again. Don’t you roll your eyes. That’s the plan. Well, unless the plan changes. But my point is, explorers going to the Moon will need to be concerned about all kinds of hazards, like dust, radiation and gigantic moon worms.

More Information
Ep. 589: Lunar Resources: Water (Update) & Other Volatiles

Ep. 589: Lunar Resources: Water (Update) & Other Volatiles

We’ve talked about water on the Moon many times here on Astronomy Cast, but there have been a bunch of big updates, thanks to new research from NASA and others. Today we’re going to give you an update on the state of water on the Moon and the plans to take advantage of it.

More Information