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The Planets: Mars


OPPORTUNITY EXPLORES FOR 14 YEARS
DISCOVERS EVIDENCE OF ANCIENT FLOWING WATER
NARRATOR: Over 50 years of Mars exploration has revealed intriguing clues, suggesting Mars has a surprisingly watery past.
ASHWIN VASAVADA: There’s a lot of evidence for ancient flowing water on Mars. For one thing, there’s a lot of rivers that once coursed across the surface that are now dry, today. There’s also evidence for floods that catastrophically scoured the surface.
JOHN GROTZINGER: It’s undeniable that the early history of Mars was much wetter than it is today.
STEVE SQUYRES: The surface of Mars is littered with an uncountable number of little round things. These “blueberries,” as we nicknamed them, are what geologists call “concretions.” ....

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How will NASA's newest rover look for sign of past life on Mars?


How will NASA s newest rover look for sign of past life on Mars?
​ By
IANS
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Published on
​ Thu, Feb 18 2021 15:51 IST
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NASA s first Mars sample collection mission prepares to land (Photo: NASA/JPL-Caltech). Image Source: IANS News
Washington, Feb 18 : NASA s Mars 2020 Perseverance rover, which is slated to touch down in Jezero Crater at around 3.55 p.m. EST on Thursday (2.25 a.m. Friday India time) is tasked with searching for telltale signs that microbial life may have lived on Mars billions of years ago.
It will collect rock core samples in metal tubes, and future missions would return these samples to Earth for deeper study, NASA said. ....

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