Every smartphone navigation fix, every precision agriculture pass, and every aircraft approach depends on atomic clocks ...

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 ...

Black holes have been understood as infinite singularities for a century. In 1916, months after Einstein published general ...

The supermassive black hole at the center of the Milky Way is the most extreme astrophysical object located within a million light-years of Earth. With an estimated four million solar masses, it's the ...

Add Yahoo as a preferred source to see more of our stories on Google. Navstar-2F GPS satellite. The theory is deceptively simple. First, there is no "absolute" frame of reference: Every time you ...

In the most comprehensive test of general relativity near the monstrous black hole at the center of our galaxy, researchers report that Einstein's theory of general relativity holds up, at least for ...

In 1915, Albert Einstein put forth a new theory of gravity: General Relativity. Instead of every mass in the Universe instantly reaching across to every other mass and exerting an attractive force, ...

New claims challenge inconsistencies in one of the foundational principles of physics. What could this mean for geophysics ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. We all know and love the world's favorite theory of gravity: general relativity (GR), first ...

Albert Einstein’s mind reinvented space and time, foretelling a universe so bizarre and grand that it has challenged the limits of human imagination. An idea born in a Swiss patent office that evolved ...