The speed of light in a vacuum, approximately 299,792 kilometers per second, is considered the universal speed limit.
According to Einstein’s theory of relativity, no object with mass can reach or exceed the speed of light.
However, scientists have explored theoretical possibilities for faster-than-light (FTL) travel or communication.
One concept is tachyons, hypothetical particles that always move faster than light.

Tachyons have never been observed, but they appear in some theoretical models of physics.
Another concept is the Alcubierre warp drive, which proposes bending or “warping” space-time.
In this idea, a spacecraft could travel faster than light by compressing space in front of it.
The warp drive does not break relativity because the ship itself is not moving faster than light locally.

Wormholes are another FTL theory, acting as shortcuts through space-time.
A wormhole could connect distant points, allowing travel that seems faster than light.
However, wormholes are purely theoretical and would require enormous energy to stabilize.
Some scientists have studied quantum entanglement as a possible FTL information transfer method.

Entangled particles affect each other instantly over distance, but no usable information can travel faster than light.
FTL travel faces enormous challenges, including energy requirements and relativistic effects.
Most FTL concepts remain speculative and are beyond current technology.
Studying these theories helps scientists explore the limits of physics and the universe.

While FTL travel is not currently possible, it inspires research in advanced propulsion and cosmology.
The idea of moving faster than light continues to captivate scientists and science fiction enthusiasts alike.