Science
Billion-year-old dunes reveal history of Mars | Space – EarthSky
The discovery of near-perfectly preserved billion-year-old Martian dunes is helping scientists to unravel the geologic and climatic history of the red planet.
Here is a region on Mars where sand dunes have been compacted over time into solid rock. This image, taken by the HiRISE high-resolution camera aboard NASAs Mars Reconnaissance Orbiter, zooms in on the now-solid sand dunes in Melas Chasma, part of the extensive Valles Marineris canyon network on the red planet. Image via NASA/ JPL/ Planetary Science Institute.
On October 5, 2020, a team of scientists announced the discovery of a group of one-billion-year-old Martian sand dunes in the planet’s V…
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