Ever since Einstein revealed his special theory of relativity, we've known that time travel—at least moving forward through time—is possible. Einstein didn't pull this theory, or even the ...

Albert Einstein had described the special theory of relativity in 1905. The result of Einstein's thinking about light, this theory introduced brand-new ideas to science. It opened up an entire ...

Quantum theory and general relativity in fact don’t get along at all. The two theories generally work at very different scales, so that’s not a huge problem. But it prevents us from ...