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Science

Across
Getting bigger every night
A huge collection of stars, gas and dust
Just a shadow. Looks like no moon at all
The distance light travels in one year
States that the universe began from one point and has been expanding
Big white circle looks like a silver dollar
An area of darkness created when a source of light is blocked
Large sphere of hydrogen gas hot enough for a nuclear reaction to occur in its core
Down
Getting smaller every night.
Something that happens in a regular and repeated way
A group of stars that form a particular shape in the sky and given a name
More than no moon at all but less than a half circle
To go around another object in space
To spin on an axis
Summer, Fall, Winter, Spring,
More than a half circle but less than a full one
Path an object takes around another object in space
Imaginary line that goes through the middle of a planet in space