Space Project

1. Sequence / Star that extends from high luminosity to cool stars with low luminosity.
4. Star / A dense, compact star composed primarily composed by neutrons.
6. / An explosion of a star, possibly caused by gravitational collapse.
7. Dwarf / A star that is the size of the earth and is at its last stage.
9. / An early stage in the evolution for a star, after the beginning of the collapse of the gas cloud from which it was formed.
11. / A massive cloud of gas and dust in outer space.
12. A small, icy object that orbits our sun and has a tail of gas.
14. Supergiant / An extremely large red giant star.
15. / A big world, it contains all matter and all of space.
16. / A large system of stars held together by mutual gravitation and isolated by vast regions of space.
18. Dwarf / The last stage for the white dwarf and ending cold and dark.

2. Fusion / A nuclear reaction in which nuclei fuse to form a heavier nucleus with the release of energy.
3. / A space rock that hits atmosphere of the earth.
5. / A giant rock in space that orbits our sun.
8. / The brightness of a star or other celestial body viewed form earth.
10. / A celestial body that orbits a star.
13. Big Bang Theory / A theory that a small volume of matter at extremely high density and temperature exploded about 10 million years ago.
17. / A celestial body of hot gases that radiant energy.