
It's hard to miss the rocket engine in Paulo Lozano's MIT office. The 100-lb. propulsion system -- about as big as a car's tire and built almost entirely of stainless steel -- sits in a large glass showcase. The engine is the type of bulky hardware that powers many of today's spacecraft to the moon, planets and far-off asteroids like Ceres and Vesta.In contrast, it's relatively easy to overlook a very small package that sits amid some clutter on Lozano's desk. Though unassuming at first glance, ...
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