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Facts under Astronomy > Neptune

1 Where is Neptune
Neptune is the 8th planet outward from the Sun, and is about 3 billion miles from Earth
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2 Has Anyone Ever Been to Neptune
In 1989 Voyager 2 a robotic probe was 3100 miles off Neptune
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3 Who discovered Neptune
The planet Neptune was discovered in 1845 by John Couch Adams
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4 Neptune's Moons
Neptune has 13 moons they main moons are called Triton and Nereid.
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5 Why is Neptune Blue
The planet Neptune appears blue as a result of the various gases on the planet. The main gas the emits the blue color is Methane.
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