A Family Of Planets Crossword

an event in which the shadow of one celestial falls on another.
a natural or artificial body that revolves around a planet.
the change in the sunlit area of one celestial body as seen from another celestial body.
a bright streak of light that results when a meteoroid burns up in Earth's atmosphere.
a small body of ice, rock, and cosmic dust that follows an elliptical orbit around the sun and gets tail as it passes the sun.
a meteoroid that reaches the Earth's surface without burning up completely.
a planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune.
the average distance between the Earth and the sun; approximately 150 kilometers.
a relatively small rocky body that travels through space.
one of the highly dense planets nearest to the sun; Mercury, Venus, Mars, and Earth.
a clockwise spin of a planet or moon as seem from above the plants North Pole.
the clounterclockwise spin of a planet or moon as seem from above the plant's North Pole; rotation in the same direction as the sun's rotation.
any of the four planets closest to the sun: Mercury, Venus, Earth, or Mars.
any of the four planets with orbits outside the orbit of Mars, namely, the planets Jupiter, Saturn, Uranus, and Neptune.
Earth center of the universe; arount 127-141 A.D.
1200 A.D.; developed the Heliocentric Theory.
Around 1100 A.D., devised telescoped , was able to prove the truth of the helio centric theory.
Universal Law of Gravity