Asking what existed before the Big Bang is often dismissed as meaningless, since traditional physics breaks down when pushed ...

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 ...

Many theories are rock-solid: Scientists have just as much confidence in the theories of relativity, quantum mechanics, ...

We all know that black holes are mysterious giants in the universe, with a mass beyond imagination and gravitational forces so strong that even light cannot escape. Our understanding of black holes ...

Space is important to us and that’s why we're working to bring you top coverage of the industry and Florida launches. Journalism like this takes time and resources. Please support it with a ...

Tim Ellis, an unassuming 31-year-old with glasses who shuffles around his sprawling rocket factory in designer sneakers, has what every space company founder longs for: a seemingly endless well of ...

Science is a story of coming up with theories then doing our best to disprove them. That is especially true for theories on a ...

Brad DeLong, in the course of something completely different, suggests that the theory of relativity really isn't all that hard. At least, if your standard of comparison is quantum mechanics. He's ...

Scientists in the United States have discovered the biggest-known merger of two black holes using gravitational wave ...

Relativity plans to 3D print almost every single component of its 200-foot-tall orbital rockets, called Terran 1. And Ellis says this is why investors are so intrigued, drawn in by the promises that ...