MEHAU KULYK / SCIENCE PHOTO LIBRARY MEHAU KULYK / SCIENCE PHOTO LIBRARY
Solar system. Computer artwork of the planets of the solar system. The planets are (clockwise from upper left) Saturn, Jupiter, Uranus, Venus, Earth, the Moon, Mercury and Neptune. The red planet at centre left is Mars and the small planet at bottom left is Pluto. Spiral galaxies, of which our own galaxy is one, are also seen. Mercury, Venus, Earth and Mars (the inner planets) are dense and rocky. Jupiter, Saturn, Uranus and Neptune are gas giants composed mainly of hydrogen and helium. Pluto, the smallest and most distant planet from the Sun, is also thought to have a rocky core. The Moon is the Earth's only natural satellite.
Model release not required. Property release not required.