In his discussion of accelerated motion on page 60 of "The Meaning of Relativity," Albert Einstein made an approximation that allowed him to develop the theory of relativity further. Einstein ...

Black holes, these extreme cosmic entities, might well hold the missing clues to solve one of physics' greatest mysteries: the unification of general relativity and quantum mechanics. For over a ...

Are black holes as simple as they appear, or is there more to their story? Theories that attempt to resolve the so-called black hole information paradox predict that black holes are much more ...

What is becoming the summer of the curmudgeon continues now that I’ve read an article in the New York Times regarding Pres. Trump and a remark he made about symphonies. The remark was made in Poland ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. Yesterday I tackled a vexing problem: Is general relativity really that hard to ...

Are black holes as simple as they appear, or is there more to their story? Theories that attempt to resolve the so-called black hole information paradox predict that black holes are much more ...