According to our current understanding of physics, based on Einstein's theory of relativity, it is not possible for anything with mass to travel faster than the speed of light in a vacuum. The speed of light, denoted by "c," is considered to be the cosmic speed limit. It's a fundamental constant of nature and plays a crucial role in our understanding of space and time.
If an object were to exceed the speed of light, it would violate causality, leading to a variety of paradoxes and inconsistencies in our understanding of cause and effect. Therefore, as far as our current knowledge goes, it is not possible for an object with mass to travel faster than light.
Regarding your second question, if somehow an object could travel faster than light, it would indeed experience some unusual effects related to time and space. According to special relativity, as an object approaches the speed of light, time dilation occurs, which means time appears to pass more slowly for the moving object relative to a stationary observer. However, it's important to note that this effect becomes more significant as the object approaches the speed of light, and it is undefined for objects traveling faster than light.
As for observation, if an object were hypothetically able to move faster than light, it would theoretically be able to see things in front of itself as they are happening. However, this scenario is purely speculative since it contradicts our current understanding of physics.