In a big discovery, NASA’s Perseverance rover found clues of old lake materials on Mars, mainly in a place called Jezero Crater. This exciting news comes from looking at information collected by the rover’s special radar. Teams from the University of California at Los Angeles (UCLA) and the University of Oslo studied this data, and their findings are in the journal Science Advances.

In 2022, the rover, like a car, went around Mars using its radar to look under the ground. The special scans found dirt in Jezero Crater, hinting that Mars was once warmer and wetter. Scientists are happy because they can study Jezero’s old materials, around 3 billion years old, with samples collected by Perseverance. They want to bring these samples back to Earth. Surprisingly, samples from February 2021 showed volcanic rocks, not dirt. But both studies fit together, showing the rocks also changed with water. Recent radar findings tell about the ground before and after the dirt layers, giving a better look at Jezero Crater’s complicated history. This news makes scientists more sure about their Mars exploration and helps them learn more about the Red Planet.