All bodies in a given gravitational field are thought to fall with the same acceleration. This idea, known as the equivalence principle, is central to our understanding of gravitational physics. It ...

Einstein’s general theory of relativity can be summed up in just 12 words: “Space-time tells matter how to move; matter tells space-time how to curve”. But this short description from the physicist ...

"Once you reach a cosmic scale, terms and conditions apply." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There is no denying the awesome ...

According to Einstein's theory of general relativity, gravity results from how mass warps space and time. The greater an object's mass, the stronger its gravitational pull. Scientists have largely ...

Researchers at Hiroshima University have developed a realistic, highly sensitive method to detect the Unruh effect—a ...