Why aliens have not come?

A Danish researcher claims that he has found a solution to the Fermi paradox.

The paradox was named after the Italian scientist who won the Nobel Prize in 1959 Enrico Fermi - who pointed out the big contradiction between forecasts that there was another life somewhere in the universe, but if there were aliens, Why haven't they visited Earth so far?

The reason aliens haven't come to Earth is because they don't have enough time to come! Rasmus Bjork - a physicist at the Niels Bohr Institute (Copenhagen, Denmark) - assumed that an extraterrestrial civilization could launch eight intergalactic spacecraft to find us. Once in space, each ship can launch eight other mini probes to the nearest stars to find inhabited planets.

Bjork also limits the solar system search in 'Milky-galaxy regions' of the Milky Way, where solar systems are quite close to the center for solid elements to form planets. stones, which guarantee life, but far enough to avoid the impact of meteorites, the heating of burning stars and radiation.

People still do not give up on finding aliens (Photo: ash.webpark.sk)

The Danish scientist calculated that even when aliens' ships reached speeds of 30,000 km / sec, 10 times smaller than the speed of light (now NASA Cassini flies to Saturn with a velocity of 32 km / seconds) also takes 10 billion years, about half the age of the universe, to discover only 4% of the Milky Way. His findings have just been published in New Scientist on January 19.

Like Earth people, aliens can also use means to shorten the search by capturing television or radio waves from the other planets.'But even then, if they develop a unique form of traffic that can take them through the Milky Way in two weeks, it still takes millions of years to find us,' Bjork said. 'There are too many stars in the Milky Way that may have life somewhere, but will we ever get in touch with them? At least not in our time, ' Bjork said.

TRAN DUC THANH