According to Einstein's theory of special relativity, the speed of light in a vacuum, denoted by "c," is an upper limit for the speed at which information, energy, or matter can travel. Objects with mass require an infinite amount of energy to accelerate them to the speed of light, and it is not possible to reach or exceed this speed for such objects without violating the laws of physics as we currently understand them.
As an object with mass approaches the speed of light, its relativistic mass increases, and the energy required to continue accelerating it also increases. This means that it would take an infinite amount of energy to accelerate an object with mass to the speed of light, making it impossible to reach or exceed that speed.
However, it's worth noting that massless particles, such as photons (particles of light), always travel at the speed of light. They do not have mass and are not subject to the same limitations as objects with mass.
In summary, according to our current understanding of physics and Einstein's theory of special relativity, it is not possible for an object with mass to travel at or faster than the speed of light. The speed of light acts as an absolute cosmic speed limit.