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, ...

A black hole can feel like the most distant and unreal object you could ever think about, yet the way its darkness bends ...

String theory unifies all the forces of nature. Forces that seem very different, such as gravity and electricity, are deeply ...

Learn more about the images advanced telescopes could take of black holes and how they could back up Einstein’s general ...

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 ...

Researchers are using black hole “shadow” images to test whether Einstein’s relativity remains unshakable. With next-generation telescopes, they hope to spot telltale signs of alternative physics ...

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 ...