Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Natural Sciences 9
Science & Medicine 21

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


Questions Show: Undoing Inflation, Searching for Water, and Seeing Everything a Black Hole's Ever Eaten

April 9th, 2009

Episode 153 of 460 episodes

If there was enough mass to cause a big crunch, would inflation go backwards too? How do spacecraft know that hydrogen is bonded to water? And why can't we see everything that's ever fallen into a black hole? 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.

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