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earth in space
| Question | Answer |
|---|---|
| rotation | the action of rotating around an axis or center |
| revolution | is a fundamental change in political power |
| orbit | Image result for orbiten.wikipedia.org In physics, an orbit is the gravitationally curved path of an object about a point in space, for example the orbit |
| geocentric theory | In astronomy, the geocentric model (also known as geocentrism, |
| Heliocntric theory | Image result for heliocentric theory This theory was first proposed by Nicolaus Copernicus. Copernicus was a Polish astronomer. He first published the heliocentric |
| astrnomy | the branch of science that deals with celestial objects, space, and the physical universe as a whole. |
| solar sytem | Image result for solar systemsolarviews.com Our solar system consists of an average star we call the Sun, |
| telescope | . an optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses |
| comet | a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun |
| gravity | the force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. |
| astronomer | an expert in or student of astronomy |
| nasa | Image result for nasa definition The National Aeronautics and Space Administration |
| axis | an imaginary line about which a body rotates. |
| tilt | move or cause to move into a sloping position. |
| meteors | a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light. |
| constellation | a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure. Modern astronomers divide the sky into eighty-eight constellations with defined boundaries. |
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