Even if the speed of the spacecraft is 10000 times the speed of light, it is impossible to shuttle between galaxies!

Even if we put aside obstacles such as economic costs and political considerations, it is impossible to achieve interstellar travel within 200 years only from the perspective of obtaining sufficient motivation. Scientists have studied the energy development, power demand and personal energy consumption of starships in the past 27 years, and they have chosen two routes. One is an interstellar immigrant ship without a clear goal; The other is Alpha Centauri, which takes 75 years to reach. This is the closest star system to the Earth, 4.37 light-years (1 light-year is about 9,460.5 billion kilometers).

The results show that sending a 500-seat interstellar spacecraft out of the solar system will consume the total energy consumed by the world in one year; It takes more energy to launch an unmanned spacecraft to Alpha Centauri. He said that even without considering the energy factor, a 500-seat interstellar travel spacecraft could not be launched before 2200; As for the detection of Alpha Centauri, it was impossible before 2500.

Previous studies have said that it takes 100 times the existing energy in the world to complete a similar voyage. Paul Rozano, an assistant professor at MIT, believes that it will take 50,000 years to reach Alpha Centauri with the most advanced rocket engine. Robert Frisbie, a scientist at NASA's Jet Propulsion Laboratory, said that it would take nearly a hundred years to reach Alpha with the theoretically most effective propulsion method, the so-called antimatter power engine.