Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

If traveling into the past is possible, one way to do it might be sending people through tunnels in space. by raggio5 via Pixabay Have you ever dreamed of traveling through time, like characters do in ...

Wormholes sit at the edge of science and storytelling, promising shortcuts across the cosmos and even pathways through time.

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

Time travel has long lived in the realm of science fiction, but a prominent futurist now argues that humans could effectively ...