Gravity

According to Albert Einstein’s general theory of relativity, the universe remembers every gravitational wave—and scientists could soon test these cosmic recollections

From the discovery of new elements to the testing of novel theories of gravity, total solar eclipses have helped spark scientific progress for centuries

Here’s the best, most inspiring and coolest science we encountered this year

Fresh images show off the Euclid space telescope’s ability to capture crisp pictures of vast swaths of sky

Several unexplained measurements are threatening to upend scientists’ understanding of the universe’s origin and fate

Strange patterns in the orbits of small objects in the outer solar system could be explained by gaps in our understanding of gravity rather than an as-yet-unseen new world

A surprisingly complex galaxy cluster suggests that in the search for dark matter, nothing is as simple as it seems

Scientists debate what the future of the cosmos looks like and whether space will ever stop getting bigger and bigger

Astronomers are now seeking to pinpoint the origins of an exciting new form of gravitational waves that was announced earlier this year

Before leading the Manhattan Project, J. Robert Oppenheimer co-authored a paper explaining that the most massive stars must eventually become what we would now call a black hole

A vast expanse of the Indian Ocean is a staggering 100 meters lower than the global average sea level because of a major dip in Earth’s gravity. Scientists now think they know the cause

Researchers still hope to discover hundreds of new binary black hole mergers despite technical setbacks that have sidelined key detectors in Italy and Japan