Although it's impossible to travel faster than light, the restriction applies only to local measurements. It's possible to manipulate space-time in such a way that superluminal motion is achievable.

Gravitational waves are distortions in the fabric of space-time caused by the motion of massive objects like black holes or neutron stars.

What is space-time? Depending on how fast you're moving or how close you are do Earth's gravity can change the way time feels.

Exploring the BTZ black hole in (2+1)-dimensional gravity took me down a fascinating rabbit hole, connecting ideas I never expected—like black holes and topological phases in quantum matter ...

This means that each tiny part of space behaves on its own terms, and it makes the math much simpler (though still quite complicated).

Theoretical computer scientists are always probing the relationship of space (memory) and time. For 50 years, experts knew that a calculation of X steps required X/log X memory slots, but a new ...