AdvertisementItty-Bitty Satellites Take On Big-Time Science MissionsOctober 23, 2019Joe PalcafacebookEmailEngineer Joel Steinkraus tests solar panels on one of two CubeSats that made up NASA's Mars Cube One mission. The MarCO CubeSats — the first to be sent into deep space — flew to Mars and relayed telemetry from NASA's InSight lander. (NASA/JPL-Caltech)