
Sign up to save your podcasts
Or


We return to two of our favorite topics, the red giant star Betelgeuse, and of course the Moon. Some clever historical detective work has revealed that Betelgeuse was not red, but yellow, two thousand years ago. This tells us how massive the star is and how far along it is in its evolution to a supernova. Closer to home, another clever bit of detective work gives a new history to ancient lunar craters by examining the Moon's gravitational lumpiness. Cool!
By Joshua Colwell, Adrienne Dove, and James Cooney4.8
116116 ratings
We return to two of our favorite topics, the red giant star Betelgeuse, and of course the Moon. Some clever historical detective work has revealed that Betelgeuse was not red, but yellow, two thousand years ago. This tells us how massive the star is and how far along it is in its evolution to a supernova. Closer to home, another clever bit of detective work gives a new history to ancient lunar craters by examining the Moon's gravitational lumpiness. Cool!

350 Listeners

1,346 Listeners

322 Listeners

840 Listeners

2,877 Listeners

565 Listeners

232 Listeners

2,372 Listeners

324 Listeners

385 Listeners

162 Listeners

75 Listeners

114 Listeners

152 Listeners

71 Listeners