Explore Solar System Discoveries

Mercury's orbit is so close to the Sun that it is hard to see from the ground. This is why ...
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Venus is one of the brightest objects in the sky. It is always found near the Sun. It rises ...
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Mars is a bright, red object in the sky. It is very easy to see, which means that even people ...
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Jupiter is the biggest planet in our solar system! It's also very bright in the sky. We don't ...
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Saturn is the second largest planet in our solar system. It is also very bright in the sky. ...
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Uranus was discovered in 1781 by William Herschel. He argued with his friends over its name. ...
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Neptune was discovered in 1846. But it wasn't discovered using a telescope. Scientists used ...
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The ninth planet in our solar system is Pluto. It was discovered in 1930 by Clyde Tombaugh. ...
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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 officially the fifth dwarf planet. ...
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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?
Do you know how far away the Oort cloud is?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
MohoxMoho : The boundary between the crust and the mantle in the earth. This is a depth where seismic waves change velocity and there is also a change in chemical composition. Also termed the Mohorovicic' discontinuity after the Croatian seismologist Andrija Moh
Click on the word to find out!
Research Highlights
Air pollution can get high in the atmosphere – high above most of the clouds you see in the sky. Scientists are finding air pollution more than 20 miles above the surface of the Earth. That’s in the stratosphere...
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