The robotic mobility assistant is sort of like an e-bike, but for walking, lifting your heels with every step and acting like ...
Space on MSN
Live long and loiter: Why NASA's ESCAPADE probes will wait a year in space before heading to Mars
"How do you get to Mars when the launch vehicle is not necessarily going to Mars?" ...
A seven-million-year-old fossil may rewrite human origins, showing our ancestors were walking upright far earlier than anyone expected.
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