Andrew is a freelance space journalist with a focus on reporting on China's rapidly growing space sector. He began writing for Space.com in 2019 and writes for SpaceNews, IEEE Spectrum, National Geographic, Sky & Telescope, New Scientist and others. Andrew first caught the space bug when, as a youngster, he saw Voyager images of other worlds in our solar system for the first time. Away from space, Andrew enjoys trail running in the forests of Finland. You can follow him on Twitter @AJ_FI.
Evidence is growing that Mars, now cold and dry, had liquid water running on its surface much more recently than previously thought.was wet around 3 billion years ago, during the planet's Hesperian period, then lost much of its water. But the a new study presents evidence of water activity from just 700 million years ago, well into the current Amazonian period, posing a new puzzle to crack about the Red Planet and its history.mission and touched down on the surface of Mars in May 2021.
"This is a very interesting result," says Eva Scheller, a planetary scientist at the California Institute of Technology who wasn't involved in the new research."We have very few recorded evidences of 'young' liquid water systems on Mars. And for the ones we have, they were usually in the form of salt minerals."
But Zhurong's instruments spotted water molecules locked away in the rock,"which is very interesting and different from other young liquid water environments that have been observed," Scheller said."It means that particular forms of water-bearing minerals would have formed at much later time periods than have previously been considered in other scientific studies.", dating back to the Noachian age more than 3.7 billion years ago.
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China's Tianwen-1 just uncovered evidence of ancient liquid water on MarsA recent study based on data gathered by China's Tianwen-1 mission has found evidence that water flowed across Mars's Amazonian terrain.
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