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 info@astronomycast.com and … Continue reading "Podcast: Questions Show: Undoing Inflation, Searching for Water, and Seeing Everything a Black Hole’s Ever Eaten"