154K views · 3.9K reactions | Evidence suggests that the surface of Mars had liquid water and may have been habitable for microorganisms. One of NASA's Curiosity rovers captures an image of an unnatural structure on the surface of Mars, which leads to great speculation as to what it is: from alien hardware to missing human spacecrafts! Watch more NASA's Unexplained Files on discovery+: https://bit.ly/38TZSzs | Love Space | Facebook

Is there water on Mars? There sure is! It’s not exactly like water on Earth, but Martian H20 can tell us a lot about the planet’s distant past while potentially aiding explorers in the future. Some of the water is even trapped inside rocks! Hear from Mars scientist Eva Scheller who helped make that discovery using NASA data. Get more Martian science: www.nasa.gov/mars | NASA - National Aeronautics and Space Administration