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Itty-Bitty Satellites Take On Big-Time Science Missions

CubeSats are only about twice the size of a Rubik's Cube. Once dismissed as tools for students learning the principles of aerospace engineering, they're now being used for more sophisticated missions.
Engineer 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.

Tiny satellites are taking on a big-time role in space exploration.

CubeSats are small, only about twice the size of a Rubik's Cube. As the name suggests, they're cube-shaped, 4 inches on each side, and weigh in at about 3 pounds. But with the miniaturization of electronics, it's become possible to pack a sophisticated mission into a tiny package.

CubeSats have been around . Two professors, Jordi Puig-Suari from California Polytechnic State University and Bob Twiggs from Stanford University, wanted to standardize the design specifications of what they termed "picosatellites."

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