Cornell University researchers debunked the idea of a lake beneath Mars' south pole by explaining bright radar reflections as constructive interference between radar waves due to water ice layer variations.

Cornell University researchers have debunked the idea of a lake beneath Mars' south pole by providing a simpler explanation for bright radar reflections initially thought to indicate liquid water. Simulations revealed that small variations in layers of water ice can cause constructive interference between radar waves, leading to reflections that mimic the presence of liquid water. The findings eliminate the need to consider exotic materials or unusual conditions for the existence of liquid water on Mars.

June 07, 2024
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