Sun halo on Mars! This Martian sky sight spotted by Perseverance rover was once thought to be impossible

Sun halo on Mars! This Martian sky sight spotted by Perseverance rover was once thought to be impossible
NASA's Perseverance rover has spotted a phenomenon scientists had lost hope of ever seeing on Mars. On Earth, when conditions are just right, ice …

* View the article originally published here. ** More curations: Al Cannistra at San Antonio ONE here.