The key components of a new propulsion system for interstellar travel would include an energy source, a propulsion mechanism, and a navigation system. The energy source could be a fusion reactor, which uses hydrogen as fuel, as it is abundant in the universe. The propulsion mechanism can be an ion engine that accelerates ions through an electric field, generating thrust. The navigation system would involve advanced AI and sensors to help the spacecraft maintain a course and avoid obstacles over vast interstellar distances.
Imagine you are a spacecraft engineer designing a new propulsion system for interstellar travel. Explain the key components and how they work together.