As new and powerful telescopes gather fresh data about the universe, they reveal the limits of older theories like Einstein's relativity. When you purchase through links on our site, we may earn an ...

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.

Yeah, yeah, Albert Einstein. Smart guy. This being summer, you see his face on T-shirts, sticking out his tongue, as if to say, “Ask the guy wearing this if he can explain fractions.” Props to ...