Based on our current understanding of physics, it is not possible to create a ship that travels at faster-than-light (FTL) speeds. The theory of relativity, specifically the theory of special relativity, establishes the maximum speed in the universe as the speed of light in a vacuum, denoted as "c."
According to special relativity, as an object with mass approaches the speed of light, its energy requirements become infinite. Accelerating an object with mass to the speed of light or beyond would require an infinite amount of energy, which is not feasible with our current understanding of physics and available technologies.
Additionally, special relativity predicts that as an object with mass accelerates, its relativistic mass increases, making it more and more difficult to reach the speed of light. The closer an object gets to the speed of light, the more energy is required to accelerate it further, approaching infinity as it approaches c.
There are also other challenges associated with FTL travel, such as causality violations and time travel paradoxes. The concept of causality, cause and effect, is a fundamental principle in our understanding of the universe. FTL travel could potentially allow for situations where events occur before their causes, leading to logical inconsistencies and violating our current understanding of how the universe works.
While there are speculative ideas and theoretical concepts like wormholes and warp drives that have been explored in science fiction, they are not yet supported by scientific evidence or confirmed to be feasible. These concepts involve manipulating spacetime in ways that are not yet understood or proven to be possible.
In summary, based on our current understanding of physics, it is not possible to create a ship that travels at FTL speeds due to the limitations imposed by the theory of relativity and the energy requirements involved.