News at a glance: An ancient Mars river, blood screening rules, and sex-research funds blocked
Sunday, May 21, 2023 - 14:33
in Astronomy & Space
PLANETARY SCIENCE Mars rover spots signs of big river NASA’s Perseverance rover has snapped images indicating a river on Mars once flowed fast and furiously, scientists said last week. The waterway was part of a network that flowed into Jezero crater, which the rover has been exploring since landing in February 2021. The new clues include rows of rocks that may be remnants of sandbars or shifting banks, in an area dubbed Skrinkle Haven (mosaic image, above). A river may have also formed a nearby hill, Pinestand , bearing sedimentary layers up to 20 meters thick,...