A Plethora of Planets
Listen 05:58
NASA's Mars rover Curiosity took photos from the Vera Rubin Ridge showing the interior and rim of Gale Crater. The full image features 16 photos stitched together. (NASA/JPL-Caltech/MSSS)
Mars’ close approach is Tuesday, July 31. A large subglacial lake of (very salty) liquid water has been found on Mars. This conclusion was arrived at by a group of European researchers using a radar analysis method frequently applied on Earth to determine subglacial features, including the presence of subglacial lakes.
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Skytalk is hosted by WHYY's Dave Heller. Each week he discusses the latest news in astronomy with Dr. Derrick H. Pitts of the Franklin Institute.
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