According to our current understanding of physics, as described by Einstein's theory of relativity, it is not possible for an object with mass to travel at or exceed the speed of light in a vacuum. The theory of relativity states that as an object with mass accelerates, its energy and momentum increase, requiring an infinite amount of energy to reach the speed of light. Therefore, it is not feasible for anything with mass to achieve or exceed the speed of light.
If we consider the hypothetical scenario of traveling at the speed of light, we encounter several interesting phenomena. As an object with mass approaches the speed of light, its relativistic mass increases, time dilation occurs, and lengths contract along the direction of motion. From the perspective of an observer on the object, time would appear to slow down, and distances would appear to shrink. However, for the object itself, time would still pass normally.
In this context, if we imagine a scenario where an object could somehow travel at the speed of light, the distance between the object and its destination would appear to contract to zero from the object's perspective. However, from an outside observer's perspective, the distance would still be finite. This phenomenon is known as length contraction.
In summary, based on our current understanding of physics, it is not possible for objects with mass to travel at or exceed the speed of light. The concept of traveling faster than light raises several paradoxes and conflicts with established physical principles.