By Mayo Clinic Staff. Dark circles under your eyes generally implies that the darkening is primarily below both eyes. This is different from bruising caused by trauma or redness and swelling caused by infection around only one eye. Causes.
Everything in the solar system is orbiting another space object. The planets, asteroids, comets, kuiper belt objects, Oort cloud, and everything else in the system orbits the â¦sun, Sol; and, Sol and the entire system orbit the center of the Milky Way galaxy.
Artistâs impression of the solar system showing the inner planets (Mercury to Mars), the outer planets (Jupiter to Neptune) and beyond. Credit: NASA. In our Solar System, astronomers often divide the planets into two groups â the inner planets and the outer planets. The inner planets are closer to the Sun and are smaller and rockier. The outer planets are further away, larger and made up mostly of gas. The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars. After an asteroid belt comes the outer planets, Jupiter, Saturn, Uranus and Neptune. The interesting thing is, in some other planetary systems discovered, the gas giants are actually quite close to the sun.