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The shapes of the planetary orbits are ____.
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celestial
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The Sun emits a stream of ____ particles called the solar wind.
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charged
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Stars, planets, asteroids, and comets are ____ objects.
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elliptical
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Uranus and Neptune are called ____ giants.
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gas
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Jupiter and Saturn are ____ giants composed mostly of H and He.
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ice
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During a ____ eclipse the Earth casts a shadow on the Moon.
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lunar
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The Milky Way is a ____ galaxy with a black hole in the center.
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red
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Mars appears ____ due to iron oxide dust covering its surface.
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spiral
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