How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the ...

The way we speak about time tends to strongly imply that the passage of time is some sort of real process that happens out ...

We break down Einstein's famous twin paradox to illustrate time dilation in special relativity. Discover how acceleration, ...

Viewing the world through the eyes of an eighth grader is a fascinating and nostalgic exercise, an empathetic practice that ...

Bell Inequalities, Relativity, and the Qubit, by William Stuckey, Michael Silberstein and Timothy McDevitt, Oxford University ...

In lead collisions at the LHC, some of the strongest electromagnetic fields in the universe bombard the inside of the beam ...

In a draft of an upcoming white paper shared with SpaceNews that benchmarks more than 1,000 real conjunction alerts, Ecosmic ...

Spacetime isn’t something that exists; it’s a model for describing how events happen. Treating events as objects creates ...

Two Caltech historians associated with the Einstein Papers Project have gathered together what they consider to be the most important of Einstein's ...