Imagine a physicist sitting in a chamber with a gun pointed directly at her head. Every few seconds, the spin direction of a random particle in the room is measured. If the particle is spinning one ...

Have you ever made a mistake that you wish you could undo? Correcting past mistakes is one of the reasons we find the concept of time travel so fascinating. As often portrayed in science fiction, with ...

In 2009, two Stanford physicists, Andrei Linde and Vitaly Vanchurin, wrote a paper calculating the number of possible universes that could exist, based on the prevailing theory, then and today, of how ...

Why or why not? That is, of course, the question. Each week, we present you with a question based on a topic in the news, and showcase the best answers on our website the following week. Want your ...

In 1600, Giordano Bruno, an Italian priest and mathematician, was burned at the stake in Campo dei Fiori in Rome after the Inquisition found him guilty of heresy, a charge that included his belief ...