NASA’s Perseverance rover used a camera on the end of its robotic arm to take a selfie with the Ingenuity helicopter now that it has detached from the rover and is independently sitting in its air field ahead of the first flight on Mars.NASA’s Perseverance rover used a camera on the end of its robotic arm to take a selfie with the Ingenuity helicopter now that it has detached from the rover and is independently sitting in its air field ahead of the first flight on Mars.