Meanwhile, your entire existence (and the existence of any object) can be plotted on what’s called a world line, a curving ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

Scientists working with particle colliders have long been at the frontier of discovering new dimensions of reality. Recently, a groundbreaking discovery at a leading particle collider has sent ripples ...

Fly about 2,600 light-years to Hubble Space Telescope imagery of the Cygnus loop nebula. See images from 2001 and 2020. Credit: NASA, ESA, STScI Acknowledgments: NSF's NOIRLab, Akira Fujii , Jeff ...