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Published: Jan. 20, 2021, 7 p.m.

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In this week\'s live Q&A, I talk about the new Space Launch System hot-fire test, how Breakthrough Starshot spacecraft might be able to communicate with home, and what messages would we send to aliens that we might never be able to reach physically.

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00:00 Start
\\n02:11 How would Starship chipsats communicate with Earth?
\\n05:00 How far can we ever explore into the Universe?
\\n06:31 Why was the SLS test so short?
\\n08:59 This is why we test.
\\n09:52 What message would we send to aliens we could never visit?
\\n13:52 Is anyone working on a practical artificial gravity?
\\n18:32 Do we know which stars can see Earth transiting?
\\n21:11 How do spacecraft change their trajectories?
\\n23:50 When will LUVOIR launch?
\\n26:24 Why is there a solar cycle?
\\n29:51 Will AI start answering science questions?
\\n32:53 Is a generation ship or seed ship better?
\\n35:25 Are gravitational lenses like telescope lenses?
\\n36:46 Will we hit light speed or wormholes first?
\\n37:49 How prepared are we for a Carrington Event?
\\n40:48 Can we predict gamma ray bursts?
\\n45:52 What are my news sources?
\\n48:41 Do I think there\'s non-intelligent life out there?
\\n52:56 Would a Europa lander see any life in the surface?

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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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