NASA satellites Wall-E, EVE to track robotic Mars landing
NASA's experimental mini-satellites (CubeSats), nicknamed 'Wall-E' and 'EVE' after Disney-Pixar characters, will broadcast status of InSight Mars lander. Both use a compressed gas found in fire extinguishers to push themselves through space, same way Wall-E did in the 2008 film. InSight, the first mission to study deep interior of Mars, is on track for landing on the planet on Monday. n