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Deep Impact Attacks Comet Tempel 1
For the past 138 years, since its discovery in 1867, Comet Tempel 1 has had distant but harmonious relations with the inhabitants of planet Earth. But on July 4, somewhere between Mars and…Sedna: Planetoid or Planet?
On March 15, 2004, astronomers confirmed the discovery of the most distant object ever identified in our solar system. Twice as far from the Sun as any known object, this red mass has an…The Planets - Earth
Earth is not perfectly round; it bulges at the equator and is flatter at the poles. From space the planet looks blue with white swirls, created by water and clouds.Size: Four planets in our…The Planets - Jupiter
A belt of asteroids (fragments of rock and iron) between Mars and Jupiter separate the four inner planets from the five outer planets. Jupiter, the largest planet in our solar system, was…The Planets - Mars
Because of its blood-red color (which comes from iron-rich dust), this planet was named for Mars, the Roman god of war. Mars is the fourth planet from the Sun, situated between Earth and…The Planets - Neptune
Neptune, named for an ancient Roman sea god, is a stormy blue planet about 30 times farther from the Sun than Earth. Neptune was discovered when astronomers realized that something was…The Planets - Saturn
Saturn, the second-largest planet, has majestic rings surrounding it. Named for the Roman god of farming, Saturn was the farthest planet known by the ancients. Saturn's seven rings are flat…The Planets - Uranus
Uranus is a greenish-blue planet, twice as far from the Sun as its neighbor Saturn. Uranus wasn't discovered until 1781. Its discoveror, William Herschel, named it Georgium Sidus (the…The Planets - Venus
Venus is often called Earth's twin because the two planets are close in size, but that's the only similarity. The thick clouds that cover Venus create a greenhouse effect that keeps it…Pluto - Quick Profile
News Flash (August 24, 2006)—Pluto Demoted! Read About It Here. Pluto, named after the Roman and Greek god of the underworld, is the coldest, smallest, and outermost planet in our solar…Trending
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