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Space

TermDefinition
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).
Created by: 1967136308
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