Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

Can you imagine extinguishing a fire before it even begins or leaving a party before reaching? Have you ever heard about the concept of ‘negative time’? This phenomenon seems possible, at least in ...

Jarred Roberts receives funding from NASA. My telescope, set up for astrophotography in my light-polluted San Diego backyard, was pointed at a galaxy unfathomably far from Earth. My wife, Cristina, ...