View Full Version : Questions Show: Distance in Space, Changing Earth's Orbit, and Different Sized Stars

2009-Jan-03, 10:28 AM
This week we find out the distance between Betelgeuse and Bellatrex, how astronomers measure distance between objects, the possibility that an object could mess up the orbit of Earth, and the reason for different sizes of stars.

More... (http://www.astronomycast.com/listeners/questions-shows/questions-show-distance-in-space-changing-earths-orbit-and-different-sized-stars/)