We’ve all wondered at some point about the end of the world. It’s a thought that pops up in movies, books, and late-night conversations. Sometimes it feels a little scary, but at times it also makes ...

The universe is expanding. But how fast? Why is this happening? And what will be the universe’s ultimate fate? These are big, literally cosmic questions, and astronomers continue to struggle to nail ...

In Douglas Adams’ “Hitchhiker’s Guide to the Galaxy,” the answer to “the Ultimate Question of Life, the Universe and Everything” is revealed, after 7 1/2 million years of computational effort, to be ...