Astronomers expected there to be hundreds of planets with two suns, but only 14 were discovered, and Einstein’s theory may explain why.

A schema showing how the orbits of planets change under Einstein's gravity in a two-star system.

Planets orbiting two stars were expected to be everywhere. Instead, astronomers have discovered only a few, according to a new study. Einstein’s general theory of relativity We may be quietly wiping out many of them. For years, this gap has puzzled scientists. The numbers simply didn’t add up, as binary stars are common in galaxies … Read more

Every time you use GPS, you rely on Einstein’s laws of relativity. Here’s how:

Einstein’s relativity theories power everyday navigation . (AI-generated image: OpenAI)

Every time you drive and use Google Maps to make a right turn or use GPS to tell a friend where you are, Albert Einstein’s two laws of relativity are invoked. This is the reason. GPS (Global Positioning System) relies on satellites orbiting at high speeds approximately 20,000 kilometers above the Earth. Clocks on these … Read more