Evidence is rising that Mars, now chilly and dry, had liquid water operating on its floor much more recently than beforehand thought.
Scientists have lengthy believed that Mars was moist round 3 billion years in the past, through the planet’s Hesperian interval, then misplaced much of its water. But the a brand new examine presents proof of water exercise from simply 700 million years in the past, nicely into the present Amazonian interval, posing a brand new puzzle to crack in regards to the Red Planet and its historical past.
The new examine relies on knowledge from China’s Zhurong rover, which is a part of the Tianwen-1 mission and touched down on the floor of Mars in May 2021. In explicit, the scientists used knowledge the rover gathered throughout its first 92 Martian days, or sols, at its touchdown web site in Utopia Planitia. Yang Liu, a researcher on the National Space Science Center (NSSC) underneath the Chinese Academy of Sciences (CAS), and colleagues analyzed knowledge from three completely different devices on Zhurong: the laser-induced breakdown spectrometer (MarSCoDe), the telescopic microimaging digital camera and the short-wave infrared spectrometer.
Related: China’s Mars rover Zhurong is hunkering down for its 1st Red Planet winter
Those devices studied minerals that, in keeping with the group, recommend the presence of a considerable amount of liquid water on the web site about 700 million years in the past, nicely into the present Amazonian epoch, which scientists beforehand thought was dry.
“This is a very interesting result,” says Eva Scheller, a planetary scientist on the California Institute of Technology who wasn’t concerned within the new analysis. “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 devices noticed water molecules locked away within the rock, “which is very interesting and different from other young liquid water environments that have been observed,” Scheller stated. “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.”
NASA has despatched its Mars rovers to historical touchdown websites, relationship again to the Noachian age more than 3.7 billion years in the past. Zhurong, then, is not only an additional set of wheels on Mars, however a robust suite of devices exploring a brand new, geologically younger web site to open new home windows of alternative for analysis on Mars.
“One of the major things we’ll have to find out and that I look forward to seeing from the Zhurong rover is how extensive these ‘young’ water-bearing minerals are,” Scheller stated. “Are they common or uncommon in these ‘young’ rocks?”
Zhurong has now coated about 1.24 miles (2 kilometers) throughout its more than 350 Martian days, and has analyzed a variety of options on its travels, that means more new Martian insights are doubtless nonetheless to return from the rover.
The outcomes are described in a paper revealed Wednesday (May 11) within the journal Science Advances.
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Water may have been on Mars much more recently than scientists thought, China’s rover suggests & More Latest News Update
Water may have been on Mars much more recently than scientists thought, China’s rover suggests & More Live News
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