Apollo 18, Apollo 19 and Apollo 20 were the canceled Apollo missions. These Apollo 18, 19, & 20 missions were initially planned by the Apollo Space Program but because of budgetary constraints and problems with schedule.
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Click on any astronomy object to expand it and see more pictures: Pictures of Mercury Venus pictures Earth pictures Mars pictures Jupiter pictures Saturn pictures Uranus pictures Neptune pictures Pluto pictures Sun pictures Moon pictures
Since the beginning of time, humans have been fascinated by the planets in outer space. This website, provides facts about the planets which will amaze and interest you. As well as facts, we offer a range of other things, such as pictures, history, wallpapers and more. Mercury Profile Venus Profile Earth Profile Mars Profile Jupiter
Sometimes remembering all of the planets can be tough, especially for younger children. Mnemonics can really help you to learn the order of the planets. They are listed in order from the sun. A mnemonic device is a memory aid. Mnemonics are often verbal, something such as a very short poem or a special word used
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Our Solar System includes the Sun and the planetary system revolving around it. A “planetary system” is a group of non-stellar objects (planets, dwarf planets, moons, asteroids, meteoroids, comets and cosmic dust) that orbit around a star, the sun is classified as a star. The Solar System includes four terrestrial planets (composed of rock and
1. Uranus is named after the Greek god of the sky. Uranus was the husband of Gaia, the goddess of the Earth. 2. It was discovered in December 13, 1781 by William Herschel, a German-born British astronomer. 3. The orbital speed of Uranus is 6.6 km/sec (14,763 mi/hr). 4. A year on Uranus is equal
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1. Jupiter is the largest planet in our solar system with a mean diameter of 139,822 km (86,881 miles). 2. Jupiter’s mass is 318 times larger than Earth. The diameter is 11 times, volume is 1,321 times, and surface area is 122 times of Earth. 3. The orbital speed of Jupiter is 13.1 km/sec. 4. A
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