According to our current understanding of physics, as described by Einstein's theory of special relativity, it is impossible for any object with mass to reach or exceed the speed of light (c) in a vacuum. The speed of light in a vacuum is approximately 299,792,458 meters per second (approximately 186,282 miles per second).
As an object with mass approaches the speed of light, its mass would increase infinitely, and it would require an infinite amount of energy to accelerate it further. This phenomenon is often referred to as "mass increase" or "relativistic mass increase." The closer an object gets to the speed of light, the more energy is required to accelerate it even slightly faster, making it practically impossible to achieve or exceed the speed of light.
The concept of time dilation also plays a role. As an object accelerates and approaches the speed of light, time slows down for that object relative to an observer at rest. As a result, the closer an object gets to the speed of light, the slower time appears to pass for that object. This effect becomes more pronounced as the object's speed approaches c.
Because of these fundamental principles of special relativity, it is currently believed that breaking the speed of light is not achievable for any object with mass, including spacecraft or particles.
It's essential to note that the theory of special relativity has been extensively tested and verified through numerous experiments and observations, and it forms a critical foundation of modern physics. there is no experimental evidence or theoretical framework suggesting that it is possible to travel faster than the speed of light without violating the laws of physics as we understand them today. However, scientific understanding may evolve in the future, and new discoveries could lead to revisions or extensions of our current theories.