Feynman diagrams keep track of what might happen by stringing together lines representing particles’ trajectories through space-time.

A while ago, we introduced the space time diagram. It's just a graph of position in space-- just one special dimension for simplicity-- versus position in time.

(via Minute Physics) This video is chapter 2 in my series on special relativity, and it covers spacetime diagrams, rotational and translational symmetry of both time and space, how certain ...

Scientists develop a means of creating 'hopfion' crystals, complex, knot-like patterns of light that repeat across both space and time.

The Hertzsprung-Russell diagram allows astronomers to map out the complete life history of a star. Learn all about this famous diagram in the fifth episode of "We Don't Planet." ...

This dimple in space-time is the result of what we call a gravity well, and it was first described over 100 years ago by Albert Einstein's field equations in his theory of general relativity.