nebular crossword

1. a celestial object consisting of a nucleus of ice and dust and, when near the sun, a tail of gas and dust particles pointing away from the sun.
3. a big cloud of gas and dust
4. the central portion in the head of a comet, consisting of small solid particles of ice and frozen gases, which vaporize on approaching the sun to form the coma and tail.
7. a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere.
8. A theory that explains the origins of Earth's moon, postulating that an asteroid roughly the size of Mars impacted the Earth during its formation.
10. earth was molten during formation of our solar system
11. a small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles
13. solar system developed out of an interstellar cloud of dust and gas, called a nebula .
14. its one of the bigger parts of the comet
15. the solar system developed out of an interstellar cloud of dust and gas, called a nebula .

1. a result of a 'fast ' encounter, the Sun could capture material which would recondense to form planets and take up orbits which are comparable to those observed in the solar system.
2. When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars”
5. The coma surrounds the snowball like core called the nucleus.
6. a rock that falls to Earth from space.
9. a region of space between the orbits of Mars and Jupiter
11. this was how planets were made
12. the force exerted on the coma by the Sun's radiation pressure and solar wind cause an enormous tail to form, which points away from the Sun.