December 23, 2024

Life Beyond Our Solar System: NASA Finds Icy Exoplanets May Have Habitable Oceans and Geysers

They determined 2 exoplanets adequately close where indications of these eruptions could be observed with telescopes.The Habitability of Distant ExoplanetsThe search for life elsewhere in the Universe generally focuses on exoplanets that are in a stars “habitable zone,” a range where temperature levels permit liquid water to continue on their surface areas. Since components and compounds absorb light at particular “signature” colors, analysis of the starlight would let researchers determine the geysers composition and assess the exoplanets habitability potential.For worlds like Proxima Centauri b that do not cross their stars from our vantage point, geyser activity might be found by effective telescopes that are able to determine light that the exoplanet shows while orbiting its star. Geysers would expel icy particles at the exoplanets surface area which would trigger the exoplanet to appear very bright and reflective.Reference: “Prospects for Cryovolcanic Activity on Cold Ocean Planets” by Lynnae C. Quick, Aki Roberge, Guadalupe Tovar Mendoza, Elisa V. Quintana and Allison A. Youngblood, 4 October 2023, The Astrophysical Journal.DOI: 10.3847/ 1538-4357/ ace9b6The research study was moneyed by NASAs Habitable Worlds Program, the University of Washingtons Astrobiology Program, and the Virtual Planetary Laboratory, a member of the NASA Nexus for Exoplanet System Science coordination group.

They identified 2 exoplanets sufficiently close where indications of these eruptions might be observed with telescopes.The Habitability of Distant ExoplanetsThe search for life elsewhere in the Universe usually focuses on exoplanets that are in a stars “habitable zone,” a range where temperatures allow liquid water to continue on their surface areas. The group also estimated the total internal heating in these exoplanets by utilizing the shape of each exoplanets orbit to get the heat generated from tides and adding it to the heat anticipated from radioactive activity. Since compounds and components take in light at specific “signature” colors, analysis of the starlight would let scientists determine the geysers composition and assess the exoplanets habitability potential.For planets like Proxima Centauri b that do not cross their stars from our vantage point, geyser activity could be detected by effective telescopes that are able to measure light that the exoplanet shows while orbiting its star. Geysers would expel icy particles at the exoplanets surface area which would cause the exoplanet to appear very brilliant and reflective.Reference: “Prospects for Cryovolcanic Activity on Cold Ocean Planets” by Lynnae C. Quick, Aki Roberge, Guadalupe Tovar Mendoza, Elisa V. Quintana and Allison A. Youngblood, 4 October 2023, The Astrophysical Journal.DOI: 10.3847/ 1538-4357/ ace9b6The research was moneyed by NASAs Habitable Worlds Program, the University of Washingtons Astrobiology Program, and the Virtual Planetary Laboratory, a member of the NASA Nexus for Exoplanet System Science coordination group.