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 ...

The results reveal that our universe is reverberating with cosmic collisions. Some of the waves stem from pairs of black ...

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 ...

For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general relativity. One explains the tiny world of particles; the other describes ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study shows how future high-resolution black hole images could test gravity at its limits and reveal whether Einstein’s ...

Albert Einstein is known for his haircut, theories of relativity and belief that “the fact that [the physical world] is comprehensible is a miracle.” What he meant was that via science, math and our ...

Quote of the day by Newton: 1915 changed physics forever. In that year, Albert Einstein published the general theory of relativity and reshaped our understanding of gravity and spacetime. For 228 ...