Universe Today Podcasts With Fraser Cain

Welcome back to Season 2 of my weekly live QA. Your chance to ask me your questions about space and astronomy... live. Sometimes I'll have guests, and sometimes I won't. This week... I didn't. You wanted to know about recent news about astronauts mixing concrete in space, the formation of craters on Titan, and what might be the difficulties of people going to the Moon or Mars? 04:22 Mixing concrete on ISS? 07:44 Could you make shotcrete from regolith? 09:50 Why do some planets spin backwards? 12:22 Formation of Titan's lakes 14:02 Why don't millionaires and billionaires live on the Moon? 18:40 Will SpaceX make electric rockets? 21:21 What if Mars crashed into Jupiter? 23:12 Why are LISA and LIGO only 2-dimensional? 26:13 Could we survive without a pressure suit? 27:24 How is the Planet 9 search going? 28:25 Why hasn't Tim Dodd finished his new video? 29:19 Does gravity move in a different speed through different media? 30:46 Any difficulties in crewed missions to the Moon or Mars? 33:35 What is my opinion on