According to our current understanding of physics, nothing can travel faster than the speed of light in a vacuum, which is approximately 299,792,458 meters per second (or about 186,282 miles per second). This limit is described in Einstein's theory of relativity, specifically in the theory of special relativity.
The theory of special relativity suggests that as an object with mass accelerates towards the speed of light, its energy increases exponentially, approaching infinity. Therefore, it would require an infinite amount of energy to accelerate an object with mass to the speed of light, making it impossible to surpass or reach that speed.
There have been various experiments and observations conducted to test the limitations of the speed of light, but so far, no compelling evidence has been found to suggest that anything can travel faster. The speed of light is considered a fundamental constant of the universe.