This week on the forums: Going to Mars, SpaceX giveaway and an alternate Earth!

Perseverance rover captures sounds of Mars helicopter Ingenuity's flight in awesome first (video)

Scientists Believe These Photos Show Mushrooms on Mars—and Proof of Life

Nuclear rocket engines were studied by NASA as part of project NERVA in 1959. The idea was abandoned in the 1970s, but now NASA wants proposals for a flight demonstration as quickly as 2026, as a potential propulsion system for crewed missions to Mars.