Thursday , December 2 2021

NASA’s Perseverance rover has detected signs of ancient flash floods on Mars



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NASA’s Perseverance rover has taken over signs of old flash flood March.
De first study from the rover’s data since it hit the planet in February, suggests that flash floods once dragged several boulders on the planet.

The robber is looking for signs of ancient life in a 45-kilometer-wide crater known as Lake Jezero.

The escarpment that the science team refers to as “Scarp a” is seen in this image created by Perseverance rover’s Mastcam-Z instrument. (NASA / JPL-Caltech / ASU / MSSS)

The dry crater was once filled with water more than 3.5 billion years ago.

It is understood that the river delta flooded over the crater wall, spreading minerals and clay that may have captured and strengthened ancient life.

The primary mission of the rover is to explore the crater and collect samples of rock, dirt and other minerals for analysis.

Perseverance caught “sharp” in the steep slopes, formed by sediment, collected at the mouth of the delta river, and then spilled into the crater lake.

An image of an escarpment along the delta of Mars’ Jezero Crater was generated using data from the rover. (NASA / JPL-Caltech / ASU / MSSS)

“We saw distinct layers in the sharps that contained rocks up to 1.5 feet above that we knew were irrelevant,” said Nicolas Mangold, a perseverance scientist at the Laboratoire de Planétologie et Géodynamique in Nantes, France.

The layers mean the slow, winding waterway that feeds the delta river must be transformed by later, fast-moving flash floods.

An image showing the locations of NASA’s rover. (NASA / JPL-Caltech / ASU / MSSS)

Mr Mangold and the science team estimated that a body of water with speeds of 6km / h to 30km / h had to travel to transport the cobblestones.

The Mars 2020 Perseverance mission is part of NASA’s Moon to Mars approach to reconnaissance, which includes Artemis missions to the Moon that will help prepare for human exploration of the Red Planet.
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