The speed of light, denoted by c, is approximately 299,792,458 meters per second. It is considered to be the fastest possible speed in the universe and is a fundamental constant in physics.
According to Einstein's Theory of Special Relativity, the speed of light is the maximum speed at which energy, information, or matter can travel. This is because as an object approaches the speed of light, its mass increases and requires an infinite amount of energy to continue accelerating.
If an object were to exceed the speed of light, it would violate the laws of physics as we know them. The object's mass would become infinite, and time would essentially stop for that object. Additionally, the object's energy would also become infinite, making it impossible to achieve this feat.
As of our current understanding of physics, it is not possible to travel faster than the speed of light. However, scientists are constantly exploring new theories and ideas that may challenge this notion in the future.
One exception to the speed of light limit is the expansion of the universe. The universe itself is not bound by the laws of physics, and therefore, space can expand faster than the speed of light. However, this does not contradict the speed of light limit as objects within the universe are still subject to it.