Scientists have made a monumental discovery about what lies beneath a mysterious mass buried below Mars’ equator, revealing the presence of ice that could be crucial in planning for potential life on the red planet.
New data from ESA’s Mars Express spacecraft has uncovered ice extending several kilometers below the surface of Mars, providing unprecedented insight into the planet’s subsurface.
Fifteen years ago, Mars Express explored the wind-sculpted Medusae fossai formation, which is where the ice is currently located. The spacecraft initially found large deposits estimated to be 2.5 km (1.6 miles) deep, but the content of these deposits remained a mystery until now. Scientists have since confirmed that the deposit stretches an incredible 3.7 km (2.3 miles) deep and is thicker than previously thought.
The volume of ice discovered is substantial, with enough water content to cover Mars with a layer 1.5 to 2.7 meters (4.9 to 8.9 feet) deep if melted – equivalent to the Red Sea’s capacity on Earth.
“Interestingly, the radar signal is consistent with what you would expect to see from layered ice, and from the polar caps of Mars, which we know to be very ice-rich,” said Thomas Watters of the Smithsonian Institution, lead author of the study.
The recent discovery, published in the journal Geophysical Research Letters, constitutes the largest detection of water in this region of Mars yet. The presence of water could significantly impact future human exploration of Mars, potentially favoring equatorial locations over the ice-rich polar caps.
“The finding of water ice buried underground on Mars does not directly provide optimism for discovering extraterrestrial life there, but it does offer hope for human colonization on the red planet,” commented Dr. Darren Baskill, an astronomy lecturer at the University of Sussex.
The deposit’s location close to the equator suggests that the water ice is a relic from Mars’ history, challenging current understandings of the planet’s climate and prompting further research into its implications.
About our experts
Dr. Darren Baskill is an Outreach Officer and Lecturer in the Department of Physics and Astronomy at the University of Sussex. He previously lectured at the Royal Observatory Greenwich and organized the annual Astronomical Photographer of the Year competition.
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Source: www.sciencefocus.com
