cientists believe that Neptune is made up chiefly of hydrogen, helium, water, and silicates. Silicates are the minerals that make up most of Earth's rocky crust, though Neptune does not have a solid surface like Earth. Thick clouds cover Neptune's surface. Its interior begins with a region of heavily compressed gases. Deep in the interior, these gases blend into a liquid layer that surrounds the planet's central core of rock and ice. The tilt of its axis causes the sun to heat the Neptune's northern and southern halves alternately, resulting in seasons and temperature changes.
Neptune is surrounded by thick layers of clouds in rapid motion. Winds blow these clouds at speeds up to 700 miles (1,100 kilometers) per hour. The clouds farthest from Neptune's surface consist mainly of frozen methane. Scientists believe that Neptune's darker clouds, which lie below the clouds of methane, are composed of hydrogen sulfide.
In 1989, the Voyager 2 spacecraft found that Neptune had a dark area made up of violently swirling masses of gas resembling a hurricane. This area, called the Great Dark Spot, was similar to the Great Red Spot on Jupiter. But in 1994, the Hubble Space Telescope found that the Great Dark Spot had vanished.
2007-04-13 20:25:45
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answer #1
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answered by Jeevan 2
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Neptune is mostly blue because of the gases that are present in Neeptune reflect all colors but blue.
2007-04-13 16:31:20
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answer #2
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answered by hello 3
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Because Uranus picked out orange and Saturn reserved yellow. Actually, it has to do with the gas mix believed to be in the atmosphere at the temperature expected.
2007-04-13 16:26:47
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answer #3
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answered by cattbarf 7
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Methane reflects primarily the blueish green area of the spectrum.
2007-04-13 19:21:06
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answer #4
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answered by socialdeevolution 4
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Does it matter? It looks neat.
It's because of the methane according to apod.
2007-04-13 16:30:19
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answer #5
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answered by Anonymous
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actually its green because of methane but because of the sun's rays & its distance from earth, its complexion looks green
2007-04-13 18:11:34
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answer #6
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answered by ej_0017 1
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Actually, it's green.
2007-04-13 16:39:39
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answer #7
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answered by Renaissance Man 5
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