Most people think time speeds up because life gets busier. In reality, as adults, we begin to sleepwalk through life. The same routes, the same offices, the same conversations, the same gossip, the ...

The big thinkers at Aperture explain relativity and how it warps the fabric of spacetime. Tom Cruise visited 'Star Wars: ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...