Click for next articlePicture it: A swarm of tiny robot helicopters descends through a reddish-brown sky, landing gracefully on the Martian surface. NASA's SkyFall mission will send a trio of mini rotorcraft to Mars equipped with ground penetrating radar technology which happens to look like little capes. Skyfall will follow in the footsteps of Ingenuity , the first rotorcraft on another world, which hitched a ride to Mars aboard NASA's Perseverance rover. Getting to Mars is no small feat, and NASA needs to be sure that these little helicopters and their gear are up to the challenge. So, in JPL's Environmental Test Laboratory, which recreates different elements of environments beyond Earth, the SkyFall team put the rotorcraft and its little radar antenna to the test.