The Early Sightings of the Planet Neptune (1173 words, 6 pages)
Little was known about Neptune ,which was discovered in 1846, untilthe Voyager 2 encounter in 1989. It has a similar composition to Uranus and is close in mass to Uranus. Its thick atmosphere made of hydrogen, helium, and some methane and ammonia, gives it a bluish color.DISCOVERY On August 25, ...
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