Mercury has long been cast as the solar system’s burnt-out rock, a relic too small and too close to the Sun to hold many surprises. That caricature is now collapsing. New analysis of NASA’s MESSENGER ...
Calling its journey "as close to perfect as you can get, NASA announced its Messenger spacecraft has reached Mercury and is orbiting as close as 124 miles above the solar system's innermost planet.
NASA tested a 3D printed titanium spring in space, showing how additive manufacturing can simplify satellite hardware.
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