Spacetime With Stuart Gary

SpaceTime Series 28 Episode 29The Astronomy, Space and Science News PodcastExploring Callisto's Ocean Potential, Laser Fossil Detection on Mars, and ISS Cleanliness ConcernsIn this episode of SpaceTime, we dive into exciting new research suggesting that Jupiter's moon Callisto may harbor a subsurface ocean, potentially making it another ocean world in our solar system. This revelation builds on data from NASA's Galileo spacecraft, which hinted at the presence of a salty liquid water ocean beneath Callisto's icy crust. Advanced modeling techniques have strengthened these claims, setting the stage for further exploration by NASA's Europa Clipper and ESA's Juice missions.Lasers on Mars: Searching for Ancient LifeWe also discuss innovative research that proposes using lasers to identify ancient microbial fossils on Mars. Scientists have successfully detected microbial fossils in gypsum on Earth, raising hopes that similar techniques could uncover evidence of past life on the Red Planet. The findings suggest that