Explore Solar System Discoveries

Mercury's orbit is so close to the Sun that it is difficult to see by ground-based observers. ...
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Venus is one of the brightest objects in the sky, so it is clearly visible to the naked eye. ...
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Mars is much like Venus-- it's very bright and therefore easily spotted in the night sky. ...
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Jupiter is the largest planet in our solar system. It is also one of the brighter objects ...
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Like the inner planets and Jupiter, Saturn is clearly visible in the night sky. The ancient ...
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Astronomer William Herschel is credited with the discovery of Uranus in 1781. He was using ...
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If you had a quiz question in school that asked what year Neptune was discovered, you'd probably ...
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After the discovery of Neptune in 1846, mathematical theory suggested that there still might ...
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Ceres is the largest asteroid in the main asteroid belt. It was classified as a "dwarf ...
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Haumea is a dwarf planet in our Solar System. Haumea is the fifth object officially classified ...
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More about Solar System Discoveries
Did you know?
Did you know that there may be 200 or so
dwarf planets in the solar system, out to the
Kuiper Belt?
Did you know that bodies in the solar system orbit the Sun in elliptical orbits?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
RiparianxRiparian : The bank of a river or other body of water; may include the floodplains
Click on the word to find out!
Research Highlights
The Gulf of Mexico: what role will the Mississippi River play in oil washing ashore and into delta wetlands? One of the spill's greatest environmental threats is to Louisiana's wetlands, scientists believe....
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