U.S. Engineers 3D Print Palm-Sized Engine for Satellites
The tiny engine could be 3D-printed in space rather than waiting for one to be delivered to orbit.
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Toyota received $4.5 million from the U.S. Department of Energy for the project


This robot is small enough to interact with waves of visible light and still move independently.


Sunstone Solar has the potential to power 240,000 homes in Oregon.