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Space
| Term | Definition |
|---|---|
| rotation | turning or circling around something |
| revolution | the emergence of modern science during the early modern period, when developments in mathematics, physics, astronomy, biology (including human anatomy) and chemistry transformed views of society and nature. |
| orbit | the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution. |
| geocentric theory | having or representing the earth as a center |
| heliocentric theory | having or representing the sun as a center |
| astronomy | the branch of science that deals with celestial objects, space, and the physical universe as a whole |
| solar system | the sun together with all the planets and other bodies that revolve around it. |
| telescope | A telescope is an instrument that is used to view distant objects. |
| comet | a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and gas that may form a tail that streams away from the sun. |
| gravity | the force of attraction by which terrestrial bodies tend to fall toward the center of the earth. |
| astronomer | A scientist that studies astronomy. |
| NASA | A government center where it tell and shows the world the latest science and space department. |
| axis | An imaginary straight line passing through the North Pole, the center of the Earth, and the South Pole. |
| tilt | to cause to lean, incline, slope, or slant. |
| meteors | a small body of matter from outer space that comes into the atmosphere of the Earth and that looks like a streak of light due to iridescence caused by friction. |
| constellation | An easily recognized group of stars that appear to be located close together in the sky and that form a picture if lines connecting them are imagined. |
| vernal equinox | the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth and occurring about March 21. |
| autumnal equinox | Either of the two corresponding moments of the year when the Sun is directly above the Earth's equator. |
| summer solstice | marks the beginning of summer, which lasts until the autumnal equinox (September 22 or 23). |
| winter solstice | the winter solstice also marks the beginning of the season of winter, which lasts until the vernal equinox (March 20 or 21). |