How old is the planet Neptune?
It's the same age as the sun and the other planets: about 4.5 billion years old. Wow! Thanks for using ChaCha!
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Why do uranus and neptune appear blue?
Uranus and Neptune's blue color is the result of absorption o...
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John Couch Adams of Britain and Urbain Jean Joseph Leverrier ...
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Scientists think that Neptune is made up chiefly of hydrogen,...
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How many earth days is Neptune year?
While a year on Earth is approximately 365.25 days, a year on...
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How are Saturn's moon Titan and Neptune's Triton similar?
The moons of Saturn, Uranus and Neptune range in size, though...
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Does mercury and neptune have any similarities?
There are no similarities between Neptune and Mercury.Mercury...
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John Couch Adams of Britain and Urbain Jean Joseph Leverrier ...
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Does the planet Neptune carry water?
It is not believed that Neptune ever had water.
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What is Neptune great dark spot?
The Great Dark Spot on Neptune is believed to be a storm simi...
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The methane in Neptune's upper atmosphere absorbs red light f...
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John Couch Adams of Britain and Urbain Jean Joseph Leverrier ...
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What space probe last visited Neptune?
The Voyager 2 spacecraft visited Neptune on its way out of th...
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What is the distance from Earth to Neptune?
Earth and Neptune are separated by 4.301 billion km. at their...
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What is neptunes average surface temperature?
The average surface temperature of Neptune is minus -200 Cels...
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Can u compare the characteristics of jupiter, saturn, uranus, and neptune?
Mercury is the closest planet to the sun. It mountains, cliff...
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What is the surface like on Neptune?
Neptune appears to be composed of mostly "ices" and rock, wit...
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Does the planet Neptune have rings around it?
Neptune has rings around it. The rings of Neptune are incompl...
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Scientists think that Neptune is made up chiefly of hydrogen,...
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What is an interestin fact for neptune?
How's this one... Neptune's mass is about 17 times that of Ea...
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Neptune has 13 known moons. They are composed of rock & ice. ...
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What are three facts about neptune?
Neptune is the eighth planet from the sun, the fourth largest...
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Neptune:1:(Roman mythology) god of the sea; counterpart of Gr...
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Does Neptune have earthquakes?
Jupiter, Saturn, Uranus, and Neptune don't have solid surface...
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What colors are Uranus, Neptune and Pluto?
Neptune and Uranus are both light blue in color due to the me...
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How are Neptune and Uranus similar?
Neptune is similar in composition to Uranus. Astronomers some...
About Neptune
Neptune is the eighth and last planet in our solar system. It is named for the Roman god of the sea. It is the 4th largest planet by diameter and third by mass, 17 times more massive than Earth. It was descovered on September 23rd, 1846 and was the first planet to be found by mathematical prediction rather than observation. Neptune is largely made of hydrogen and helium, with bits of methane and ammonia in the atmosphere. Neptune has 13 moons, and a fragmented ring system comprised largely of frozen chunks of methane.
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