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

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 ...

According to Newtonian physics, the gravitational attraction between two masses is proportional to the inverse of the square ...

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 ...

Relativity Space has finally launched its 3D-printed rocket after multiple scrubbed attempts, but the results are decidedly mixed. The startup's Terran 1 vehicle successfully lifted off from Cape ...

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 ...

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 ...