Gravity, as most people understand it, is the familiar force that pulls a falling apple toward Earth. But for astronomers and ...

After a 10-year effort, physicists got a value for “Big G” that does not settle the debate over one of nature’s hardest ...

The asteroid Apophis will pass close to Earth in 2029 and will be visible without a telescope, revealing unique changes on ...

The time had come to open the envelope, but Stephan Schlamminger, a physicist at the National Institute of Standards and ...

Gravity has been tested extremely well inside the solar system. On cosmic scales, direct tests are harder. This study pushes ...

We have long taken it for granted that gravity is one of the basic forces of nature—one of the invisible threads that keeps the universe stitched together. But suppose that this is not true. Suppose ...

Gravity’s always been my favorite force. I’ve been cheering from the front lines as it’s consistently exceeded expectations, mapping massive globs of invisible matter, bending light to magnify infant ...

As NASA accelerates its efforts to establish permanent lunar habitats at the South Pole, researchers are preparing for a ...