SpaceMars may once have had a much larger moon There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a gravitational pull to drive tides in the Red Planet's lost lakes and seas News
SpacePerseverance rover may hold secrets to newly discovered Mars volcano There appears to be a volcano near Jezero crater on Mars and the Perseverance rover might already have samples from it that we could use to precisely date the activity of another planet's volcano for the first time News