Rethinking Astrobiology's Biggest Questions About Life Through New Physics with Dr. Sara Walker
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- Опубликовано: 2 окт 2024
- Our guest is Dr. Sara Imari Walker, an astrobiologist and theoretical physicist interested in the origin of life and discovering alien life on other worlds. She is deputy director of the Beyond Center for Fundamental Concepts in Science and a professor in the School of Earth and Space Exploration at Arizona State University. She is also a fellow of the Berggruen Institute and a member of the external faculty at the Santa Fe Institute. She is the recipient of the Stanley L. Miller Early-Career Award for her research on the origin of life, and her research team at ASU is internationally regarded as being among the leading labs aiming to build a fundamental theory for understanding what life is.
Want to know more about Sara's work? Watch this video all about Universal Life Detection, Astrobiology, & Assembly Theory: • Universal Life Detecti...
astrobiology.n...
What is Ask An Astrobiologist?
Once a month, the NASA Astrobiology Program host a one-hour program where the public is invited to interact with a high-profile astrobiologist, who replies to Twitter and RUclips comment questions live on video.
Ask An Astrobiologist: Episode 71
Rethinking Astrobiology's Biggest Questions About Life Through New Physics
Featuring Dr. Sara Imari Walker (Arizona State University)
Hosted by Dr. Graham Lau (Blue Marble Space Institute of Science)
Production Assistants:
Sarah Treadwell (Blue Marble Space Institute of Science)
Anurup Mohanty (Blue Marble Space Institute of Science)
Mariam Naseem (Blue Marble Space Institute of Science)
Directed by Mike Toillion (NASA Astrobiology Program)
Illustrations by Melissa Flower (melissaflower.com)
Music & Animation by Mike Toillion (NASA Astrobiology Program)
Thank you both very much for sharing your time, work, knowledge and experience in the public arena, peace
And thanks for watching!
Man has a very long history of technology. Think all the stone tools, the fantastic spears, arrows, controlling/using fire etc. Those will be 30 to 200 thousand years ago I think.
I had the good fortune of taking a class taught by Dr. Walker at ASU. She is brilliant!
That's awesome!
I'm not a member of the astrobiology field, but am a molecular geneticist & biologist involved in earlier days of genomic sciences. As to how you get to a living cell or microorganism requires a lot of chemistry trying to explain how you got to nucleic acids, nucleic acid polymerization & replication etc etc. It seems to me that many explorations or assumptions of how life began don't yet explain this satisfactorily. or tend to ignore it in favor of protein chemistry. The best lectures I ever heard on this early chemistry and the necessary types of processes & compartmentalizations needed to get to a protocell were by Jack Szostak. Thoughts on this?
Jack definitely has shared some incredible ideas from that realm of thought. I would argue that you might really enjoy Sara Walker's book, Life as No One Knows It, especially as she specifically address some of those issues in the book and in her presentation of Assembly Theory as one way of looking at the lineage of molecular developments required for life to originate.
@@cosmobiologist Thank you! Will do so.
I just bought it on Audible.
First check on Jack Szostak's early work with RNAs from random mixes;
David P. Bartel Jack W. Szostak
1993 “Isolation of New Ribozymes from a Large Pool of Random Sequences” Science261,1411-1418(1993).DOI:10.1126/science.7690155
Ekland, EH, JW Szostak, and DP Bartel
1995 "Structurally complex and highly active RNA ligases derived from random RNA sequences" Science 21 July 1995: Vol. 269. no. 5222, pp. 364 - 370
The greatest intellectual invention of human mind : Calculus.