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In this week's questions show, I explain why I've got such a skeptical view about the search for aliens if there might be multiple great filters, and why NASA doesn't just go back and use Apollo hardware to return to the Moon?

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00:40 Are there multiple Great Filters?
\n02:35 Could we refuel ships in space to land on Mars
\n06:01 Could we put a light on the Moon to prove what we landed there?
\n08:18 Will James Webb Launch?
\n09:52 What will it take to confirm signs of life?
\n12:30 How long until cosmic rays die down?
\n16:03 Why don't we just use Apollo hardware to go back to the Moon?
\n19:46 Why am I so negative?
\n22:29 Good sources of journals?
\n25:43 When will you believe that it's actually aliens?

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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