Gullies on Mars Could Have Been Formed by Recent Periods of Liquid Meltwater, Study Suggestsnsusannakohler33808nThu, 06/29/2023 – 20:54n Gullies on Mars Could Have Been Formed by Recent Periods of Liquid Meltwater, Study Suggestsn https://www.brown.edu/news/2023-06-29/mars-meltwater