NASA's Mars 2020 Perseverance rover gets its record-setting cargo

NASA’s Mars Helicopter has been attached to the Perseverance Mars rover, the latest in a series of milestones ahead of it joining Curiosity on the red planet – and hopefully setting a record while it’s there. The centerpiece of Mars 2020, Perseverance has a long trip to get to its new home, but it may be the very final approach …