Physicists are quietly rewriting the rulebook for how we might cross the gulf between stars, not by bolting bigger rockets to ...

Even if it turns out that time loops never take shape, studying them provides key insights into the deepest rules of reality.

If traveling into the past is possible, one way to do it might be sending people through tunnels in space. by raggio5 via Pixabay Have you ever dreamed of traveling through time, like characters do in ...

NASA aims to send astronauts to Mars by the 2030s. But with current technology, the journey will be years long. That's why NASA invested in a new type of rocket that could shorten the trip to just 2 ...

Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Let's explore the possibility of traveling to universes beyond our own — if they so exist, that is. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Astronauts and commercial space travelers are subject to damaging radiation and microgravity, along with other potential injuries. We need better ways to protect them. This article first appeared in ...

Your body's blood-making stem cells, hematopoietic stem cells (HSC), are like factory managers who work best when calm and rested. But when stress hits, like infection or injury, they spring into ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

While you were sleeping, people just like you have actually begun to travel into space. We were invited behind Virgin Galactic’s velvet rope to meet them, and here is our advice: Get ready, and get in ...

If cinema is an invitation to escape the real world, there's no better place to go to then the stars. However, while there are plenty of movies about space travel circling the cosmos, which ones are ...