Physicists in the US have used a tabletop experiment to rule out the existence of strong, gravitational-like forces at short length scales. Such forces, which could hint at additional space–time ...

The Lucid Gravity's first real-world range test fell far short of expectations. It performed way better on its second try, delivering over 400 miles of highway range. That's still short of its EPA ...

A team led by astronomer Margot Brouwer (Leiden Observatory, The Netherlands) has tested the new theory of theoretical physicist Erik Verlinde (University of Amsterdam) for the first time through the ...

One of the biggest challenges to prepare people and equipment to operate on the moon is gravity. Gravity on the lunar surface is one-sixth of what we experience on Earth. All personnel and equipment ...

Let’s talk about quantum gravity experiments that can be done here on Earth! If we discover how to connect quantum mechanics with general relativity we’ll pretty much win physics. There are multiple ...

On April 20, a satellite conceived in the 1960s to test two aspects of Einstein’s general theory of relativity finally roared into space from Vandenberg Air Force Base in California. Aside from two ...

If you have good eyes, the smallest objects you can make out are about a tenth of a millimeter: roughly the width of a human hair. Add technology, and the smallest structures we have measured so far ...

Albert Einstein can rest a little easier: The first effort to measure how quickly gravity exerts its influence indicates that it more or less matches the speed of light, scientists reported Tuesday.