Extraterrestrial Life
A team led by Professor Lisa Kaltenegger at Cornell University has pinpointed 45 rocky exoplanets in the habitable zones of their stars, where liquid water might exist. The research, drawing on data from ESA's Gaia mission and NASA's Exoplanet Archive, highlights prime targets for the search for extraterrestrial life. Published in Monthly Notices of the Royal Astronomical Society, the study also notes 24 additional candidates in a stricter habitable zone.
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New research indicates that salty, nutrient-rich ice on Europa could sink through the moon's icy shell to feed its hidden ocean, potentially supporting life. Geophysicists at Washington State University used computer simulations to show this process, inspired by Earth's crustal delamination. The findings address a key habitability challenge for the Jupiter moon.