Podcaster: Beth Johnson, Franck Marchis, and Simon Steel (alternate hosts); Guest: Dr. Federico Tosi
Title: SETI Live – Ganymede’s Alien Landscape: Salt, Organics, and Extraterrestrial Clues
Organization: SETI Institute
Link: https://sites.libsyn.com/462636
Description:
NASA’s Juno mission has observed mineral salts and organic compounds on the surface of Jupiter’s moon Ganymede. Data for this discovery was collected by the Jovian InfraRed Auroral Mapper (JIRAM) spectrometer aboard the spacecraft during a close flyby of the icy moon.
The findings, which could help scientists better understand the origin of Ganymede and the composition of its deep ocean, were published on Oct. 30 in the journal Nature Astronomy.
Dr. Federico Tosi, a Juno co-investigator from Italy’s National Institute for Astrophysics in Rome and lead author of the paper, speaks with senior astronomer Franck Marchis about this discovery and what it could mean for Ganymede’s subsurface oceans and possibly life. (Recorded 25 January 2024.)
Bio: Beth Johnson is a communications specialist and social media manager with a degree in physics and master’s work in planetary science. She specializes in meteor showers, icy moons, and anything with volcanoes.
Franck Marchis is a senior planetary astronomer and chair of the exoplanet group at the Carl Sagan Center of the SETI Institute and Chief Scientific Officer and Founder at Unistellar. He has dedicated his work to the study of our solar system, specifically the search for asteroids with moons, using mainly ground-based telescopes equipped with adaptive optics.
Simon Steel is Deputy Director of the Carl Sagan Center for Research at the SETI Institute. As an observational astrophysicist, he specialized in optical spectrophotometry, with an interest in the star formation histories of galaxies.
Dr. Federico Tosi, a Juno co-investigator from Italy’s National Institute for Astrophysics in Rome
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365 Days of Astronomy
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