DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY DETLEV VAN RAVENSWAAY / SCIENCE PHOTO LIBRARY
Inner solar system planets, computer artwork. The four planets of the inner solar system are seen orbiting the Sun. The orbits of the planets, and the Moon, are shown as blue lines. Distances and sizes are not to scale. The planets, in order from the Sun are: Mercury, Venus, Earth and Mars. Here, Mercury and Venus have collided, a possibility as the orbits of the inner planets are not stable. The bright band in the background is the Milky Way, our Sun's galaxy.
Model release not required. Property release not required.