A NASA Mars orbiter snapped this shot of Perseverance as it was descending via parachute...

Now that Perseverance has landed on Mars, what will the rover do inside Jezero Crater?

Mars landing: Photo shows Perseverance rover during landing

'Astronaut’ means 'star sailor.' NASA chose it in 1958 over 'cosmonaut,' or 'universe sailor.' But "Why 'astronaut' won out," says a NASA Johnson Space Center historian, "is a mystery." The reason we chose that term for our space travelers "Was never recorded in NASA’s own historical documents."