Liquid water previously seen under the surface of Mars may be an illusion, a new study suggests. The liquid was supposedly spotted beneath the planet's ice-covered south pole in 2018. Scientists saw bright reflections and assumed they were looking at water under the polar cap.
Mars was born with a fatal flaw that doomed it to become a barren lifeless place, according to new research: it was always too small to retain large amounts of water. Evidence that water was once present on Mars has been mounting for decades and this month NASA's Perseverance rover collected rock samples which have all but confirmed groundwater flowed on the red planet.