Why it’s so difficult for NASA to land rover on Mars
Read full article: Why it’s so difficult for NASA to land rover on MarsHere’s a look at how NASA’s Perseverance rover will attempt to land on Mars on Thursday, Feb. 18, 2021. Dr. Roger Weins, a NASA scientist, explained why it’s so difficult to land on the Red Planet. “Partly because of the very thin air on Mars. But with that thin air on Mars, that only slows it down to several hundred mph, and that’s not good enough to land at all. After that, you have to use retro rockets.