China has quietly solved a problem that only becomes obvious once you try to live and work off-world: clocks on the moon do ...

Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

Wormholes are often imagined as tunnels through space or time — shortcuts across the universe. But this image rests on a ...

Albert Einstein had described the special theory of relativity in 1905. The result of Einstein's thinking about light, this theory introduced brand-new ideas to science. It opened up an entire field ...

For over a century, Einstein's general theory of relativity has been key to understanding gravity. But new research suggests this theory "glitches" in the farthest reaches of space. That doesn't mean ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

As new and powerful telescopes gather fresh data about the universe, they reveal the limits of older theories like Einstein's relativity. When you purchase through links on our site, we may earn an ...

A new software package detailed by Chinese scientists promises to tell what time it is on the moon, accounting for effects of ...

Monisha Ravisetti was a science writer at CNET. She covered climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical ...

In this last part of our series on recently digitized books from the Wenner Collection, we are focusing on works that ...