In this week's questions show, I explain how long it'll take for space junk to burn up in the Earth's atmosphere, would it be possible to put advertising in space, and why panspermia is appealing as a hypothesis.
01:04 When will the space junk return to Earth?
03:14 Why don't we clean up the junk?
06:50 Can we advertise in the night sky?
08:36 Why is pansperimia appealing as a hypothesis?
10:53 Crewed space station dedicated to astronomy?
13:25 Best way to reduce light pollution?
16:08 What factors are important for life?
18:41 Can a star and black hole orbit each other?
20:41 How does time dilation work?
24:46 What will happen if Starship works?
28:49 How do galaxies collide if everything is expanding?
30:10 Why are Saturn's rings fading away?
Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.
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Team: Fraser Cain - @fcain / frasercain@gmail.com
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