BOULDER- Black holes, time travel and E= mc^2. They are all related to Albert Einstein's Theory of Relativity. How many of us, though, can actually explain any of it? This year, Einstein's theory ...

Recent advancements in observational techniques have led to the capture of high-resolution images of black hole shadows, ...

Though most people have heard of Albert Einstein's theory of special relativity, what that theory really means and how it has impacted modern physics can be difficult for the non-physicist to grasp. A ...

"The key result is that while many alternatives look very similar to the 'standard' black hole at today's image quality, the ...

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 ...

Let's rewind the clock back…oh, I don't know, let's say a hundred years. It was 1917, and Einstein had just developed his ...

One of the most basic assumptions of fundamental physics is that the different properties of mass -- weight, inertia and gravitation -- always remain the same in relation to each other. Although all ...

In 2023, scientists detected the gravitational waves from a black hole collision that seemed impossible. New research finally ...

Solar eclipses occasion lots of excitement and pique the public's interest in astronomical phenomena. Eclipses can also expand our understanding of the universe in profound ways. In fact, astronomical ...

Forbes contributors publish independent expert analyses and insights. I cover the physics of nothing, everything, and the stuff in between. Gravity causes galaxies to rotate. Astronomers can study the ...