As a massive black hole located 55 million light-years from Earth, the black hole at the center of M87 has a mass equivalent ...

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

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 ...

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 ...

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

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 ...

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 ...

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 ...

Relativity Space will be sending OneWeb’s second-gen broadband satellites to orbit starting in 2025 using its fully reusable 3D-printed rocket Terran R, under a new multi-launch agreement. This is the ...

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 ...