Explore Solar System Discoveries
Mercury's orbit is so close to the Sun that it is difficult to see by ground-based observers. ...Read more
Venus is one of the brightest objects in the sky, so it is clearly visible to the naked eye. ...Read more
Mars is much like Venus-- it's very bright and therefore easily spotted in the night sky. ...Read more
Jupiter is the largest planet in our solar system. It is also one of the brighter objects ...Read more
Like the inner planets and Jupiter, Saturn is clearly visible in the night sky. The ancient ...Read more
Astronomer William Herschel is credited with the discovery of Uranus in 1781. He was using ...Read more
If you had a quiz question in school that asked what year Neptune was discovered, you'd probably ...Read more
After the discovery of Neptune in 1846, mathematical theory suggested that there still might ...Read more
Ceres is the largest asteroid in the main asteroid belt. It was classified as a "dwarf ...Read more
Haumea is a dwarf planet in our Solar System. Haumea is the fifth object officially classified ...Read more
More about Solar System Discoveries
Did you know?
Did you know that the physics of a spinning dancer and the formation of the solar system
have something in common?
Did you know that our solar system now has eight planets and five dwarf planets, according to the International Astronomical Union?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
xCirque : A semicircular basin excavated by glaciers in mountain top regions; may contain a lake
Click on the word to find out!
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....Read more