Recently, the Curiosity rover has made an intriguing discovery suggesting that water was once present in an area that scientists had thought would be dry.
The key to understanding whether Mars was ever habitable is water. For life as we know it to thrive, liquid water needs to be present — and we know that even though it is now dry, there was once liquid water on the surface of Mars. However, the history of water on Mars is complex, and scientists are still debating exactly how long water was present there and when the planet dried up.Curiosity captured the image above in December 2022 in a region called the Marker Band Valley.
“This is the best evidence of water and waves that we’ve seen in the entire mission,” said Ashwin Vasavada, Curiosity’s project scientist at NASA’s Jet Propulsion Laboratory, in a statement. “We climbed through thousands of feet of lake deposits and never saw evidence like this – and now we found it in a place we expected to be dry.”
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