If the flight to the cosmic bodies closest to Earth and the return will take future colonists several years
The researchers calculated the size of the ship,based on the fact that it will move at a speed of 200 km / s for 6.3 thousand years. According to their concept, such a ship would require a crew of at least 500 people. To provide them with food, it requires at least 0.45 square meters. km of artificial land.
The radius of the ship for this must be at least 224 m, and the length - 320 m.
Previously, scientists from the Harvard-Smithsonian Center for Astrophysics said that the cigar-shaped asteroid Oumuamua, discovered in the Solar System in October 2017, may be of artificial origin.