Dubbing these “closed timelike geodesics” (CTGs), Ralph and Sajeendran explain in the paper: “Such a CTG would be ideal for ...

When Glamorous Glennis, an experimental Bell X-1 aircraft built to mimic the shape of a .50 caliber bullet, shot to 700 mph ...

The idea of traveling faster than light has fascinated scientists and dreamers for generations. With stars and galaxies separated by unimaginable distances, humanity continues to explore how we might ...

Electrons in graphene just broke their own sound barrier. Scientists created a controllable electronic shockwave inside a ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. Space is big, and ...

MILAN (AP) — Extreme athlete Felix Baumgartner, the first skydiver to fall faster than the speed of sound during a 24-mile leap through the stratosphere more than a decade ago, died in a crash ...