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Exploring Space with Chip-Size Satellites
NASA astronaut Andrew Feustel installs a materials science experiment pallet on the outside of the International Space Station; the box includes three prototypes of integrated-circuit spacecraft.
NASA
Gravity may be woven into the very fabric of space-time, but some objects seem nearly immune to its pull. Scale something down to the size of a dust particle and you'll find it can stay aloft almost indefinitely, dancing in midair on thermal currents.
From IEEE Spectrum
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