please answer@!!!!thnx!!!!
1. when three celestrial objests become aligned,____ occurs....
2. Heavy elements are produced in a star during____ explosion.
3.astronomers believe that a __________ is spinning rapidly in the center of the crab nebula.
4. white dwarfs are superdense stars with an _____core.
5. stars that change in brightness is called ____ stars.
6. in an ________, all the galaxies will eventually move back to the center of the universe.
7. a red shift in a star's spectrum indicates the star is moving _____the earth.
8. pleiades are example of an _________.
9. stars that spin rapidly and give off radio waves is called _______.
thnx!!!!if you don't know the others, just skip them!!!!!!!!
2007-02-17
17:11:28
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8 answers
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asked by
My_Girl
2