The topic of traveling at the speed of light is really far away for people, but it is of great significance to us, because if we want to make space livable now, we may have to travel at the speed of light to achieve it. As we all know, at present, human beings measure the distance between planets by the speed of light, that is to say, in theory, when the speed of light reaches, the distance traveled by the speed of light in one year is called light years. Humans have discovered several planets suitable for human migration, but the interstellar travel plan cannot be realized because the scientific and technological level of human beings has not yet reached the state of being able to travel at the speed of light. Of course, if mankind really makes a breakthrough in the field of science and technology one day, reaching the speed of sailing at the speed of light, even surpassing the public security law, then this human dream may come true. Of course, in addition to the speed of light, the following situations may also help us achieve our goals:

1, space crossing

Generally speaking, the ability to travel through space will appear frequently in some science fiction novels, but from a practical point of view, it is also possible to realize this phenomenon in the field of science, because there have been many unexplained journeys in human science on earth. If this phenomenon is really clarified, it is of great significance to mankind.

2. Space folding

This theory was put forward by Einstein. For example, if we walk from one end of a piece of paper to the other, if it takes five minutes, then if we fold the paper, we can get there in only one second. Compared with the speed of light, space folding may allow humans to reach their destinations faster.

3. Warp speed theory

I believe many sci-fi fans often hear in sci-fi movies that space travel will enter the stage of warp acceleration, and once the spacecraft enters the stage of warp acceleration, it is likely to sail faster than light. This is scientifically confirmed, but our current scientific level has not yet reached this level.