Are There (Microbial) Aliens On Earth?

Science Talk

Scientific American

Science

4.2 • 644 Ratings

🗓️ 12 December 2007

⏱️ 27 minutes

🔗️ Recording | iTunes | RSS

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Summary

In this episode, theoretical physicist, cosmologist and astrobiologist Paul Davies ponders the question of whether life originated more than once on earth, and how to find examples of a second origin if it did. Plus we'll test your knowledge of some recent science in the news. Websites mentioned on this podcast include: www.sciam.com/sciammag or tinyurl.com/3b8voo; www.beyond.asu.edu; www.sciam.com/sciambody; www.mayoclinic.com Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:34.0	and spoken word entertainment. Log on to Audiblepodcast.com slash science to get a free audio book download when you sign up today.
0:45.6	Welcome to Science Talk, the weekly podcast of Scientific American for the seven days starting
0:50.5	December 12th.
0:51.6	I'm Steve Murski.
0:53.0	This week on the podcast, are there aliens already
0:56.0	living among us? We'll talk to renowned researcher and writer Paul Davies about that, plus we'll
1:01.9	test your knowledge about some recent science in the news. Paul Davies is a theoretical physicist
1:07.0	and cosmologist who has in the last few years worked on the problems of the origins of
1:11.6	life and evolution. Born in England, he worked in Australia from 1990 to 2006 when he came to
1:18.1	Arizona State University to establish an institute called Beyond Center for Fundamental Concepts in
1:24.4	Science. He has the cover story in the December issue of Scientific American called Are Aliens Among
1:29.7	Us?
1:30.4	To find out more, I called him at his office at Arizona State.
1:35.1	Dr. Davies, great to talk to you today.
1:37.0	Hi, Steve.
1:37.7	This is a fascinating kind of thought experiment at this point.
	...

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