“A major goal for the Mars Curiosity rover missions is to look for signs of life,” Cardenas said. “It’s always been looking for water, for traces of habitable life. This is the biggest one yet. It’s a giant body of water, fed by sediments coming from the highlands, presumably carrying nutrients.”
Mars
At Sci News: Mars was Habitable for Methanogenic Microorganisms 3.7 Billion Years Ago, Study Suggests
“The subsurface of Mars during the Noachian period was likely to have been habitable for microorganisms that feed on hydrogen and produce methane, according to new research.”
At New Scientist: The Perseverance rover is finding more and more organic matter on Mars
Finding some brick-shaped rocks on a mountainside does not support the hypothesis that all the structure and infrastructure of a city came about by natural processes.
The layered hills of Mars’ Arabia Terra
“One can imagine an ancient lake filling the crater in which these mounds are located, the shoreline changing as the sea level varied with the Martian climate, the tides leaving behind alternating layers of mudstone and limestone.”
Mars Curiosity Rover Collects Rock Samples Containing Key Ingredient Of Life
Rock samples collected from Mars by NASA’s Curiosity rover have revealed signs of key ingredients of life, according to a statement by the agency.