Water and the possibility of life on Mars
Science Sessions are brief conversations with cutting-edge researchers, National Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in the Proceedings of the National Academy of Sciences (PNAS), plus a broad range of scientific news about discoveries that affect the world around us.
In this episode, researchers explain what we know about the potential for water and life on Mars and what we might learn from analysis of returned samples.
In this episode, we cover: •[00:00] Introduction •[01:04] Mark Thiemens explains the importance of bringing samples from Mars back to Earth. •[02:37] Arya Udry explains the current gaps and limitations in the geological record provided by Martian meteorites. •[03:55] Bruce Jakosky explains what we currently know about the presence and history of water on Mars. •[05:26] Monica Grady explains how analyzing volatile species in Martian samples could provide insight into the planet’s past climate. •[06:58] Rachel Slank describes the potential presence of liquid brines on Mars. •[08:27] Vashan Wright used recordings from a seismometer onboard NASA’s InSight lander to estimate the volumes of liquid water that might be contained in the Martian mid-crust. •[10:14] Mark Sephton explains what biomarkers are and what kinds we might expect to find in Martian samples. •[11:34] Caroline Freissinet describes the discovery of long-chain organic molecules on Mars and the difficulties of conclusively identifying organic molecules as biomarkers. •[13:32] Thiemens explains the potentially far-reaching value of continuing to support the Mars Sample Return mission. •[14:37] Final thoughts and conclusion.
About Our Guest: Mark Thiemens Distinguished Professor of Chemistry and Biochemistry University of California at San Diego
Arya Udry Associate Professor – Graduate coordinator University of Nevada, Las Vegas
Bruce Jakosky Professor Emeritus University of Colorado Boulder
Monica Grady Professor Emirita Open University
Rachel Slank Postdoctoral Fellow Lunar and Planetary Institute
Vashan Wright Assistant Professor University of California, San Diego
Mark Sephton Professor Imperial College London
Caroline Freissinet Researcher Laboratory for Atmospheres, Observations, and Space French National Centre for Scientific Research
View related content here: www.pnas.org/doi/10.1073/pnas.2421996121 www.pnas.org/doi/10.1073/pnas.2415280121 www.pnas.org/doi/full/10.1073/pnas.2404254121 www.pnas.org/doi/full/10.1073/pnas.2321080121 www.pnas.org/doi/full/10.1073/pnas.2404260121 www.pnas.org/doi/full/10.1073/pnas.2321067121 www.pnas.org/doi/full/10.1073/pnas.2409983121 www.pnas.org/doi/full/10.1073/pnas.2404256121 www.pnas.org/doi/full/10.1073/pnas.2420580122
Follow us on Spotify, Apple Podcasts, or wherever you get your podcasts for more captivating discussions on scientific breakthroughs!
Visit Science Sessions on PNAS.org: www.pnas.org/about/science-sessions-podcast
Follow PNAS: Twitter/X Facebook LinkedIn YouTube Sign up for the PNAS Highlights newsletter
Read More Details
Finally We wish PressBee provided you with enough information of ( Water and the possibility of life on Mars )
Also on site :
- At least 7 dead after wave of explosions hit southwest Colombia, authorities say
- G7 leaders gather in Canada amid Israel-Iran crisis and trade wars
- Term Sheet Next: How Facebook’s former chief revenue officer is coaching the next generation of startup founders