Gravity and motion make time pass faster on Mars than Earth, reshaping navigation, communication, and future crewed missions.

Time may seem like a constant force, but according to a new study published on December 1 in The Astronomical Journal, the ...

This temporal lag is a direct consequence of Albert Einstein’s Theory of General Relativity. The rule is simple: the weaker ...

The flow of time isn’t as consistent as we might think – gravity slows it down, so clocks on the surface of Earth tick slower than those in space. Now researchers have measured time passing at ...

When I was five years old, my family moved into a 1930s semi-detached house with a long strip of garden. At the end of the garden was a miniature orchard of eight apple trees the previous owners had ...

We've known about it for as long as we've been around. Without it, we wouldn't be here at all. Thanks to Isaac Newton, we have a really good idea of what it does, and we can calculate its effects ...

For close to a century, scientists have been trying to marry Albert Einstein’s General Theory of Relativity and quantum ...