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Across 2. large celestial bodies in orbit around a star (SUN) 3. small icy bodies orbiting the sun, usually on a highly elliptical path 4. star at the center of the solar system 7. passage of an astronomical body through the shadow of another 8. Space means the whole universe including the earth

Down 1. small bodies that orbit a large one,either natural or artificial 5. cloud of gas and dust in the space and birth-place of stars. 6. flash of light in the sky caused by a particles of dust