Gravity, in the literal sense, keeps everyone (and everything) on Earth grounded. It acts as the anchor that prevents objects from floating skyward. For humans, it’s a leash that stops us from ...

Gravity is the unseen force that shapes the universe, yet we rarely give it much thought. First explained by Sir Isaac Newton, it is the pull that draws objects toward one another based on their mass ...

He's smart but his birds are sloppy: Japan picks an astronaut -- Life in a box: the perilous psychology of isolation and confinement -- Star crazy: can space blow your mind? -- You go first: the ...