Randall Munroe, creator of the web comic xkcd, takes on the internet’s strangest questions in his latest book, What If? Serious Scientific Answers ...

“Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” — Arthur C. Clarke * ...

Dust devils. Giant hailstones. Supercell thunderstorms. The Earth is no stranger to extreme weather phenomena, but the universe at large is home to ...

The Hubble Space Telescope has been photographing the universe for over two decades with a gallery of stunning imagery to show for it. ...

Writers love to explore “what if” scenarios based on the idea of alternate realities. Alan Moore’s Watchmen depicts an alternate reality in which ...