Episode 628: Q&A 117: Why Am I So Negative About Aliens? And More... Featuring Dr. Jason Wright

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? Follow Dr. Wright on Twitter: https://twitter.com/astro_wright 00:40 Are there multiple Great Filters? 02:35 Could we refuel ships in space to land on Mars 06:01 Could we put a light on the Moon to prove what we landed there? 08:18 Will James Webb Launch? 09:52 What will it take to confirm signs of life? 12:30 How long until cosmic rays die down? 16:03 Why don't we just use Apollo hardware to go back to the Moon? 19:46 Why am I so negative? 22:29 Good sources of journals? 25:43 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. Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ Audio Podcast version: ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio Weekly email newsletter: https://www.universetoday.com/newsletter Weekly Space Hangout: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg Support us at https://www.patreon.com/universetoday More stories at https://www.universetoday.com/ Twitch: https://twitch.tv/fcain Follow us on Twitter: https://twitter.com/universetoday Like us on Facebook: https://www.facebook.com/universetoday Instagram - https://instagram.com/universetoday Team: Fraser Cain - @fcain / frasercain@gmail.com Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - weber.chad@gmail.com