资讯

Some are narrow rings, as in the canonical picture of a 'belt' like our solar system's Edgeworth-Kuiper ... if the belt is ...
NASA's Lucy spacecraft recently got an up-close look at a strange peanut-shaped space rock floating through the cosmos in the main asteroid belt.
Most meteorites, however, originate from the solar system's main asteroid belt—a vast region between the orbits of Mars and Jupiter where more than a million asteroids circle the sun.
Our home, planet Earth, is part of a system of bodies that orbit a central star – the Sun. This solar system consists of four inner rocky planets and four outer gas giant planets as well as an ...
Past studies have already established that Alpha Centauri is the closest star system to the solar system ... primary ...