Morning Overview on MSN
Is gravity a real force or just a cosmic illusion we’ve misunderstood?
Every time a coffee mug drops, a satellite orbits or an astronaut floats, we are watching the same phenomenon play out under ...
Space.com on MSN
Does antimatter 'fall up'?
In 1971, astronaut David Scott stood on the lunar surface, holding a hammer and a feather, and in the vacuum of the moon, he ...
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