We’re so familiar with the current configuration of the planets in the Solar System, but did the planets always orbit in this way? Did they form further out and then migrate inward to their current positions? And what about other star systems out there? Ep. 301: Planetary Migration Jump to Shownotes Jump to Transcript Show [...]

We created Astronomy Cast to be timeless, a listening experience that’s as educational in the future as it was when we started recording. But obviously, things have changed in almost 7 years and 300 episodes. Today we’ll give you an update on some of the big topics in space and astronomy. What did we know [...]

Today on the program, we'll speak to the author of a new book, The Origin of Feces, about why waste matters.  Plus, we'll learn about the earliest use of pottery for cooking; we'll hear the heart-breaking tale of the fate...

Sometimes a trilogy needs four parts. We’ve looked at the history and modern era of space stations but now it’s time to peer into the future at some space station concepts still in the works. Most of these will never fly, but the ideas are important. We can’t call ourselves a true spacefaring civilization until [...]

And now we reach the third part in our trilogy on space stations, with the largest vehicle ever assembled in space: the International Space Station. Launched in 1998, it now consists of 450 metric tonnes of modules, power systems and spacecraft and is regular host to a handful of astronauts from many countries. Ep. 298: [...]