High-speed interstellar travel — Warp, plasma, or atom?

One of the biggest challenges in our plans for colonizing the Moon, Mars, and exoplanets is time. Although today’s spacecraft are undoubtedly far more advanced than those of the first Space Age, it is still estimated that a trip from Earth to Mars would take six months, and to the other planets of the Solar System even longer (not to mention that we would have to travel for years, decades, or even centuries to many of the galaxies, systems, and planets discovered in recent years).