Is There a Need for Sample Return?

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I think about a space virus coming here or some kind of external source, and we would be the source of that potential contamination. I mean, whatever survives in such harsh conditions might be pretty good at surviving all conditions. So it might actually take a ride on us back home. That would be an interesting engineering design there. Curiosity has been leaving these little pods on the surface quite recently. And they kind of look like a lightsaber helps, which so, yeah, to me, I think I tweeted something like, you know, this weapon is your life. Like don't lose it, cure us because it's just dumping these little vials everywhere. The thing that blows me away the most

David Kipping is an astronomer at Columbia University, director of the Cool Worlds Lab, and host of the Cool Worlds YouTube channel. Please support this podcast by checking out our sponsors:
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OUTLINE:
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) – Introduction
(05:10) – Habitable exoplanets
(15:30) – Alien life in our Solar System
(27:20) – Starship
(31:28) – James Webb Space Telescope
(44:47) – Binary planets
(55:04) – Exomoons and Kepler-1625b
(1:08:34) – Discoveries of alien life
(1:22:15) – Aliens
(2:08:43) – Oort clouds
(2:19:30) – Future of astronomy
(2:32:45) – Alpha Centauri
(2:45:03) – Kardashev scale
(2:56:41) – AI and space exploration
(3:13:37) – Great Filter
(3:24:51) – Colonization of Mars
(3:31:35) – Simulation hypothesis
(3:43:48) – Advice for young people
(3:48:06) – Meaning of life