Rover detects 'catastrophic' flooding of water across Mars

Data from radar signals penetrating up to 100 meters into the surface of Mars collected by China's Zhurong rover reveal evidence of massive floods on Mars.

Rover detects 'catastrophic' flooding of water across Mars
Published Sep 28, 2022 5:03 AM CDT   |   Updated Thu, Oct 20 2022 10:28 AM CDT
1 minute & 9 seconds read time

A study on the flooding of Mars titled "Layered subsurface in Utopia Basin of Mars revealed by Zhurong rover radar" has been published in the journal Nature.

Rover detects 'catastrophic' flooding of water across Mars 02

China's Mars rover, Zhurong, has used its radar imager to detect evidence of two major floods that likely shaped the Utopia Planitia region the rover has been exploring since it landed on the Red Planet on May 14th, 2021. Its radar imager can see up to 100 meters (328 feet) below Mars' surface using low-frequency radar waves or between 3 and 10 meters (9.8 to 32.8 feet) below the surface with high-frequency radar waves.

Radar signals reflect off subsurface materials, and the radar data reveals the size and ability of the materials to hold electric charges, with stronger radar signals correlating with larger objects. A layer between 10 and 30 meters below the surface likely contains large boulders near the bottom, with smaller rocks that settled on top, as the reflecting signals were stronger the deeper they went.

Zhurong also surveyed an older, thicker layer between 30 and 80 meters deep. The study authors believe it was formed from rapid flooding that brought sediments into the region over three billion years ago. The upper layer was likely created by another flood 1.6 billion years ago due to glacial activity. The layers are unlikely to be explained by volcanic activity, as the layers have less ability to hold an electric charge and no sudden changes in layering that would be expected from lava flow.

You can read more from the study here.

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NEWS SOURCES:nature.com, doi.org

Adam grew up watching his dad play Turok 2 and Age of Empires on a PC in his computer room, and learned a love for video games through him. Adam was always working with computers, which helped build his natural affinity for working with them, leading to him building his own at 14, after taking apart and tinkering with other old computers and tech lying around. Adam has always been very interested in STEM subjects, and is always trying to learn more about the world and the way it works.

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