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Space Vocabulary

Across
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
Rocky objects revolving around the sun that are too small and numerous to be considered planets
A galaxy that does not have a regular shape
The study of the moon, stars and other objects in space
An imaginary line that passes through Earth’s center and the North and South poles, about which Earth rotates
The scientific law that states that every object in the universe attracts every other object
A spherical region of comets that surrounds the solar system
A galaxy with a bulge in the middle and arms that spiral outward in a pinwheel pattern
A streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere
A model of the universe in which Earth is at the center of the revolving planets and stars
The two days of the year on which the sun reaches its greatest distance north or south of the equator
Down
A galaxy shaped like a round or flattened ball, generally containing only old stars
A large group of single stars, star systems, star clusters, dust and gas bound together by gravity
A force that moves rocks and other materials downhill, the force that pulls objects towards each other
The spinning motion of a planet on its axis
The name often given to the four outer planets, Jupiter, Saturn, Uranus and Neptune
A model of the solar system in which Earth and the other planets revolve around the sun
The name often given to the four inner planets, Mercury, Venus, Earth and Mars
A chunk of rock or dust in space
A meteoroid that passes through the atmosphere and hits Earth’s surface
A doughnut-shaped region that stretches from around Pluto’s orbit to about 100 times Earth’s distance from the sun
The movement of an object around another object
The two days of the year on which neither hemisphere is tilted toward or away from the sun
All of space and everything in it
The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth
One of the different apparent shapes of the moon as seen from Earth
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit of the sun
The initial explosion that resulted in the formation and expansion of the universe
The path of an object as it revolves around another object in space
The daily rise and fall of Earth’s waters on its coastlines