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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.

Big, Bigger, Biggest


Although the Sun looks small from Earth, it is really much, much bigger than our planet (and any other planet in the solar system). The Earth is actually one of the smaller planets compared to the giant planets in the outer solar system - Jupiter, Saturn, Uranus, and Neptune. The table below lists the diameters of the planets and the Sun compared to the Earth.

  How Big Are They Compared to Earth?
Sun 109 times larger than Earth!
Mercury Less than half the size of Earth
Venus About the same size as Earth
Mars About half the size of Earth
Jupiter More than 11 times larger than Earth
Saturn More than 9 times larger than Earth
Uranus About 4 times larger than Earth
Neptune A little less than 4 times larger than Earth
Pluto The smallest planet! Only one-fifth the size of Earth.



Last modified January 5, 2004 by Lisa Gardiner.

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