Interstellar migration is impossible. Why are Nobel Prize winners so sure?

The astrophysicist Michel Mayor, one of the winners of the 20 19 Nobel Prize in Physics, told AFP recently that he thought interstellar migration was impossible. Michel Mayor shared the 20 19 Nobel Prize in Physics for his participation in the discovery of the first exoplanet orbiting a sun-like star. Mitchell

Mayor believes that if we define interstellar migration as migration to livable exoplanets, then obviously, we will never realize this dream.

He even thinks that from now on, we should give up all the ideas of "if the earth is uninhabitable, we should emigrate to another habitable planet". The reason is simple: all known exoplanets-that is, planets outside the solar system-are too far away. Even optimistically, the nearest habitable exoplanet is a few light years away. From an astronomical point of view, a few light years is not too far away, and it is also a neighbor, but it takes a long time to get there.

So far, humans have discovered more than 4,000 exoplanets in the Milky Way, but none of them can be reached by us. Stephen, a planetary astrophysicist at the University of California.

Kane agreed with the mayor. He believes that from the perspective of human history, all stars-except the sun-are actually infinite from us, which is a depressing fact. Man strives to reach the nearest alien object-the moon.

Humans may be able to send themselves to Mars within 50 years, but it may take hundreds of years to send themselves into orbit around Jupiter. The closest star system to the solar system is at least 70,000 times farther than Jupiter and the Earth, so all stars except the sun are practically inaccessible.