Physicists artificially slowed down time to reveal the bizarre Terrell-Penrose effect, a consequence of special relativity. This image from the experiment shows a sphere seemingly moving at 99.9 ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

Scientists hope to probe the nature of general relativity through a possible pulsar found in the center of the Milky Way, ...

Einstein’s theory of relativity has explained the universe for more than a century. But under certain conditions, cracks ...

New research suggests Einstein's general relativity explains the rarity of planets orbiting two suns. In tight binary systems ...

For several years, an innovative, California-based launch company named Relativity Space has been the darling of investors and media. Relativity promised to disrupt launch by taking a somewhat niche ...

The accelerating expansion of the universe could be explained by modifying general relativity so that gravity has mass – or so thinks a small group of physicists. Matthew Francis reports What lies ...