Countdown as SpaceX, NASA prepare to test new astronaut capsule

NASA and SpaceX counted down Saturday to the launch of a new astronaut capsule on a week-long trip to the International Space Station and back—a key step towards resuming manned space flights from US soil after an eight-year ...

Spider silk could be used as robotic muscle

Spider silk, already known as one of the strongest materials for its weight, turns out to have another unusual property that might lead to new kinds of artificial muscles or robotic actuators, researchers have found.

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