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 ...

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 ...

Time travel has long been a staple of science fiction, captivating imaginations with the possibility of moving through time as easily as we travel through space. However, the question remains: how ...

For years, doctors and scientists have tracked how space changes the human body. Astronauts often come back with weaker muscles, thinner bones, and immune systems that do not respond as well as before ...

Traveling to space is brutal on the body. Spaceflight can cause astronauts’ bones to lose density, their brain and eye nerves to swell, and their genes to change expression. Research suggests spending ...

As the number of space travelers is increasing through commercial missions, it becomes more important to understand how space affects the human body. A team led by researchers at Baylor College of ...

While astronauts do not leave home to go to war or face combat, families of space travelers may share a few commonalities ...

On the Wednesday, Sept. 24, 2025 episode of The Excerpt podcast: Are humans on the precipice of not only being visitors to outer space, but also becoming permanent residents? Namrata Goswami, ...

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 ...