Relativity plans a test flight in 2021. The short five-year history of Relativity Space Inc. is like something out of a startup storybook. Founders Tim Ellis and Jordan Noone had little more than a ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Albert Einstein's theory of general relativity has held up pretty well after a century out in the ...

Foreword / Diana Kormos Buchwald -- Preface -- Part I. Preliminaries. Introduction -- Einstein's first trip to America -- Structure and contents of The meaning of relativity -- Part II. The emerging ...

Compared with other books on history of science, Peter Galison’s current offering has drawn a lot of attention in the general press. The New York Times, for example, ran a glowing two-page feature ...

Karl Schwarzschild's 1916 solution to Einstein's field equations of general relativity predicted the existence of black holes, characterized by an event horizon where even light cannot escape. Cygnus ...

Relativity Space launched the world's 3D printed rocket on March 22, 2023. Though the rocket failed to reach orbit, it did pass some important milestones on its maiden voyage. "It was, at least from ...

Monisha Ravisetti was a science writer at CNET. She covered climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical ...

The 1919 total solar eclipse provided the first empirical test of Albert Einstein's general theory of relativity, specifically measuring how the Sun distorts light from background stars. General ...

One hundred years ago this Wednesday, Albert Einstein gave the last of a series of presentations to the Prussian Academy of Sciences, which marks the official completion of his General Theory of ...

Geraint Lewis receives funding from the Australian Research Council. Our understanding of gravity has gone through a few permutations, from Newton’s equations through to Einstein’s general relativity.