DICTIONARY LOOKUP
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Space Fossils
The Kuiper Belt is a disc-shaped region of icy objects beyond the orbit of Neptune -- billions of kilometers from our sun. Pluto and Eris are the best known of these icy worlds. There may be hundreds more of these ice dwarfs out there. The Kuiper Belt and even more distant Oort Cloud are believed to be the home of comets that orbit our sun.

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  News Features People Extreme Facts Dictionary

 
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zenith

The point on the sky directly above the observer.

zodiacal light

a faint glow from light scattered off of interplanetary dust along the plane of the ecliptic.

 
Can't find it? Don't understand it? Ask us.
Q
zenith

The point on the sky directly above the observer.

zodiacal light

a faint glow from light scattered off of interplanetary dust along the plane of the ecliptic.