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Science Review of the Kuiper Belt 150 150 Deborah

Science Review of the Kuiper Belt

Overview The Kuiper Belt is located between the orbit of Neptune at 30 AU, or 30 times the distance of the Earth from the Sun, and 50 AU. It contains many icy objects, including dwarf planets Pluto, Haumea, and Makemake, and smaller planetoids. The New Horizons probe is scheduled to transmit pictures from that region…

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Science Review of Pluto and Charon 150 150 Deborah

Science Review of Pluto and Charon

Overview The dwarf planet Pluto is more than 5.8 billion kilometers away from the Sun, about 40 times the distance between the Earth and the Sun. Its largest moon, Charon, is about half its size. From the time it was discovered in 1930 to 2006, Pluto was called the ninth planet in the Solar System.…

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Science Review of the Planet Neptune 150 150 Deborah

Science Review of the Planet Neptune

Overview The planet Neptune is the 8th planet from the Sun, at a distance over 30 times the distance the Earth is from the Sun, 4.5 billion km. It is an ice giant, similar to the planet Uranus. Its location was predicted mathematically before it was ever observed by telescope. The Planet Neptune The mass…

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Science Review of the Planet Uranus 150 150 Deborah

Science Review of the Planet Uranus

Overview The planet Uranus is the seventh planet from the Sun. It is about 3 billion km from the Sun, or about 20 times the distance from the Earth to the Sun. It is a giant planet composed mostly of ice. Its system of icy moons and dark rings is complex, and the planet is…

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Science Review of the Planet Saturn 150 150 Deborah

Science Review of the Planet Saturn

Overview Saturn is the sixth planet from the Sun. It is a gas giant, similar to the planet Jupiter, and is the second-largest planet in the Solar System. It has nine rings made of ice, rocks, and dust, as well as over 60 larger moons and hundreds of moonlets in the rings. The Planet Saturn…

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Science Review of the Moons of Jupiter 150 150 Deborah

Science Review of the Moons of Jupiter

Overview The planet Jupiter, besides being the largest planet in the Solar System, has over 65 moons discovered so far. It also has very faint rings. Numerous asteroids, called Trojans, share the same orbit around the Sun with Jupiter. The Galilean Moons The four largest moons of Jupiter were observed by Galileo in 1610 through…

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Science Review of the Planet Jupiter 150 150 Deborah

Science Review of the Planet Jupiter

  Overview Jupiter is the largest planet in the Solar System, and the 5th planet from the Sun, at over 5 times the distance from the earth from the Sun. Its diameter is over 142, 900 km, and its mass is 2.5 times the combined mass of all the other planets that orbit the Sun.…

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Science Review of the Asteroid Belt 150 150 Deborah

Science Review of the Asteroid Belt

Overview The main asteroid belt is in the area between the planets Mars and Jupiter, although asteroids exist in most other parts of the Solar System. Scientists believe that asteroids in the asteroid belt formed from shattered remnants of protoplanets when the planetary disk started to cool. Many different types of asteroids have been observed,…

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Science Review of the Planet Mars 150 150 Deborah

Science Review of the Planet Mars

Overview The planet Mars is the fourth planet from the Sun, and the last of the terrestrial planets in the Solar System. It is almost 228,000,000 km from the Sun, about 1 ½ times the distance of the earth from the Sun. It has a thin atmosphere, and is mostly desert, with volcanoes, ice caps,…

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Science Review of Lunar Exploration 150 150 Deborah

Science Review of Lunar Exploration

Overview Early astronomers were limited to what they could see with their own eyes through the millennia they could observe the moon. Galileo saw craters and mountains on the moon during the 17th century, and astronomers after him charted many of its features. The space race between the United States and the Soviet Union began…

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