Time dilation, a captivating concept embedded in Einstein’s theory of relativity, has been experimentally validated on Earth.

And if a new time zone is created, should it be tied to time on Earth, or function as its own thing entirely? The European Space Agency is developing a lunar lander called Argonaut.

Astronauts experience a different kind of time warp when they travel to space and spend six months or longer living on the International Space Station. From the perspective of their low-Earth ...

What is space-time? Depending on how fast you're moving or how close you are to Earth's gravity can change the way time feels.

Our measures for time (other than the second) are fundamentally derived from the rotation and orbit of the Earth around the sun. But that's only the most relevant time if you're in approximately ...

A total lunar eclipse will turn the moon blood red for millions across Asia and Europe overnight on Sept. 7-8. Here are the ...

Weak magnetic fields once exposed humans to radiation. People adapted with shelter, clothing, and mineral protection. Our ...

The appeal is straightforward. Solar panels on Earth depend on weather. They shut down at night, sulk under clouds, and fade during winter. In contrast, a solar array parked 36,000 kilometers above ...

Stem cell aging is potentially worrisome because it diminishes the body’s natural ability to repair tissues and organs.