Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Natural Sciences 14
Science & Medicine 37

Astronomy Cast brings you a weekly fact-based journey through the cosmos.


Questions Show: Multiple Big Bangs, Satellite Collisions and the Size of the Universe

March 12th, 2009

Episode 148 of 460 episodes

This week we wonder if the Universe is going to collapse and then expand again, how satellites can have such different velocities, and the size of the observable Universe. If you've got a question for the Astronomy Cast team, please email it in to [email protected] and we'll try to tackle it for a future show. Please include your location and a way to pronounce your name.