Introduction to Astronomy. Mr. Lewis Music, Motion, & Multimedia, 2007. Observatory. observatory : a place or building that uses large telescopes for observing outer space. Planetarium.
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Music, Motion, & Multimedia, 2007
NGC 5866 is tilted nearly edge-on to Earth's line-of-sight.
Asteroid 951 Gaspra
“[Venus’s] atmosphere is composed mostly of carbon dioxide. There are several layers of clouds many kilometers thick composed of sulfuric acid.” It’s pressure is 90 times that of earth. Some areas of the planet are so hot that they would cause lead to melt. Source: www.nineplanets.org.
“Most rocks on the surface of the Moon seem to be between 4.6 and 3 billion years old.” Source: www.nineplanets.org.
Meteor Crater in Arizona, 49,000 years
Aristarchus and Herodotus on
Mars once had liquid water on it and therefore, possibly life. It may still have liquid water and life on it below the surface.
Almost as big as the state of Arizona
“Jupiter has a total of sixty-three moons, ranging from tiny "moonlets" only a few miles in diameter up to giant Ganymede, which is larger than two of the planets in the solar system. The four largest moons are called the Galilean moons because they were discovered by Galileo Galilei when he started using his primitive telescope almost five hundred years ago.” Source: Astronomy for Kids at http://www.dustbunny.com/afk/planets/jupiter/jupmoons.html