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Planets in our solar system

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Michael Givens

on 21 April 2011

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Transcript of Planets in our solar system

Our Solar System Mercury Mercury is the closest planet to the sun. It is also the smallest planet in our solar system. Mercury has no moon. The temperature on the planet may reach 840 degrees F during the day. But at night, the temperature may drop as low as -275 degrees F. Mercury is dry, extremely hot and almost airless. The surface of Mercury consists of cratered terrain and smooth plains and many deep craters similar to those on the moon. The craters formed when meteors or small comets crashed into the planet. Mercury's surface appears to be much like that of the moon. Mercury's surface color is gray. NASA's Messenger is the first spacecraft to orbit Mercury. Mercury is a terrestrial planet. Venus Venus is the second closest planet to the sun. It is smiliar to Earth in size and mass. The thick atmosphere is made mostly of carbon doxide. Droplets of sulfuric acid in atmosphere clouds a yellowish color. Its surface has craters, faultlike cracks, and volcanoes. Greenhouse effect causes surface temperatures of 450 degrees celsuire to 475 degrees celsius. Venus has no moons. Mariner 2 did a flyby of Venus scanning the surface with infrared and microwave radiometers. Venus is a terrestrial planet. Earth Earth is the third planet from the sun. Earths atmosphere protects the life on the planet. Surface temperatures allow water to exist as solid, liquid, and gas. Earth is the only know plane to have life on it. Earth has one moon. Earth is a terrestrial planet. Mars Surface appears reddish-yellow because of iron oxide in soil. Ice caps are made of frozen carbon dioxide and water. Channels indicate that water had flowed on the surface; has large volcanoes and valleys. Has a thin atmosphere composed of carbon dioxide. Surface temperatures range from -125 degrees celsius yo 35 degrees celsius. Huge dust storms often blanket the planet. Mars has two small moons Phobos and Deimos. Fourth planet from the sun. The first close up pricture of mars was in 1965. Mars is a terrestrial planet. Jupiter Jupiter is the largest planet. It is the 5th planet from the sun. Jupiter has faint rings. Its atmospher is mostly hydrogen and helium; continuous storms swirl on the planet--the largest is the Great Red Spot. Jupiter has four large moons and at least 57 smaller moons; one of its moons, lo, has active volcanoes. The other 3 of its largest moons are Ganymede, Callisto, and Europa. Metia is just of of its 57 smaller moons. NASA's Juno polar orbiter will study how Jupiter formed and became the dynamic world we see today. Jupiter is a Jovian planet. Saturn Saturn is the 6th planet from the sun. It is the second largest planet. The thick atmospher of Saturn ia moatly hydrogen and helium. Saturn has a complex ring system. Saturn has at least 31 moons. The largest moon, Titan, is larger than Mercury. NASA's Cassini orbiter is on an extended mission to explore Saturn and its rings, its magnetosphere and its moons. Prometheus , Pandora, Pan, and Mimas are some of its smaller moons. Saturn is a jovian planet. Uranus Uranus is the 7th planet from the sun. It is a large, gaseous planet with thin, dark rings. Its atmosphere is hydrogen, helium, and methane. Axis of rotation is nearly parallel to plane of orbit. Uranus has at least 21 moons. Titania, Oberon, Miranda, Ariel, and Umbriel are some of its moons. Most of what we know about Uranus came from Voyager 2's flyby in 1986. The spacecraft discovered 10 additional moons and several rings before heading on to Neptune. Uranus is a jovian planet. Neptune Neptune is a large, gaseous planet with rings that vary in thickness. Its atmosphere is made up of hydrogen, helium, and methane. Neptune is sometimes farther from the sun than Pluto is. Neptune has dark-colored storms in atmosphere. It has at least 11 moons. Some of these moons are Naiad, Thalassa, Despina, Galatea, Larissa. Most of what we know about Neptune is thanks to Voyager 2's 1989 flyby. The spacecraft also discovered six of Neptune's moons. Neptune is a jovian planet.
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