Artist’s conception of Perseverance working on the Martian surface.Image: NASA/JPL-CaltechAfter months of anticipation and a naming contest that involved hundreds of thousands of voters, NASA has finally settled on a name for its upcoming Mars rover: Perseverance.Sojourner, Spirit, Opportunity, Curiosity—and now Perseverance.The next-gen Mars 2020 rover is basically ready for launch, which is scheduled for…