I think it is unrealistic for human beings to realize interstellar travel in the future. At least in the next 100 year, mankind will not be able to realize this wish. The so-called interstellar travel actually means that humans can fly out of the solar system, or at least reach the nearest star to the earth. But obviously, this idea is a bit crazy. Although science and technology are developing rapidly now, it is really difficult to realize this idea if we look at it calmly.

In fact, we can look at the development of the world aerospace industry. As early as the late 1960s, Americans had already landed on the moon. There is no doubt that the United States is far ahead in space technology. Even now, America's space technology is still ahead of the world. After the Americans landed on the moon, mankind made many achievements in space technology, such as the landing of the space shuttle, the space station and the rover, and later the exploration of Pluto's New Horizon.

Although we have made great achievements in this field, half a century later, our rocket launching capability has not actually surpassed that of Saturn V in the United States, which means that our own rocket launching capability has not been qualitatively improved. Besides, we can also look at the speed of the spacecraft. As early as the last century, the Soviet Union built the 1 satellite, with a flying speed of 7.8 kilometers per second. Now, the speed of the solar probe invented by the United States has exceeded 100 km per second, which has set a record, but even at this speed, it is still far from the speed of light, even 1? Can't even reach it.

So from the above analysis, we can see that in the future 100 years, or even for a long time, it is impossible for us to realize the so-called interstellar travel. In the next 100 years, it will be a great achievement if we can achieve a round trip to Mars.