Researchers believe they've detected 3 hidden lakes under Mars' icy surface

Mars.
(Image credit: Getty Images)

The same scientists who reported in 2018 that they likely discovered a large saltwater lake under the ice on Mars' south pole believe they have found three additional lakes in the same area.

The researchers published their findings Monday in the journal Nature Astronomy. The scientists used radar data from the European Space Agency's Mars Express spacecraft, which was collected by its Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS). MARSIS sent out radio waves that bounced off the surface and subsurface layers of Mars, and the scientists were able to determine the material present at each location based on how the signal reflected back.

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Catherine Garcia, The Week US

Catherine Garcia is night editor for TheWeek.com. Her writing and reporting has appeared in Entertainment Weekly and EW.com, The New York Times, The Book of Jezebel, and other publications. A Southern California native, Catherine is a graduate of the University of Redlands and the Columbia University Graduate School of Journalism.