Spherical micro-robots could explore mars
HUNDREDS of robotic spheres that could one day explore planets like Mars are to be tested out by scientists back on Earth.

The micro-robots could land on the surface of another planet arranged in a capsule like eggs in a carton. Or they could be dropped onto the planet by a balloon floating above the surface. They would move by rolling and bouncing, powered by artificial muscles that alter their overall shape

The only thing left is to reproduce man.
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