Astronaut Bruce McCandless II floats untethered away from the safety of the space shuttle, with nothing but his Manned Maneuvering Unit keeping him alive. The first person in history to do so.
Image: NASA
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I hope everyone's time away from school was at least relaxing, and I hope you are wanting to get back into the school of things! Some o...
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California regulators on Thursday gave a robotic taxi service the green light to begin charging passengers for driverless rides in San Fra...
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Bringing it all Home
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