Our Solar System Crossword

4. Method of finding extrasolar stars using the Doppler Effect.
5. Planets that are made largely of gaseous material.
8. Name of the first successful flyby of Mars (excluding the number).
9. The process of a star's brightness decreasing due to a planet passing in front of it.
10. Measuring a star's position in the sky and observing how that position changes over time.
14. Planets that are further away from the sun than the asteroid belt.
15. Part of the debris left over from the formation of the solar system (aka space trash).
17. A device that lands on a celestial body to obtain data.
19. Type of planet that is orbiting a star other than our sun.
20. Acronym for the union that is in charge of defining a planet.
21. Pluto is considered an icy _____ planet.
22. Known as a planet's suitability for supporting life.
24. A flight of a spacecraft past a celestial body to gain scientific data.
25. Spacecraft that orbits a celestial body to gain data.

1. The name of the first rover used in the 90's to gain data on Mars.
2. A vehicle that is able to move about and collect data on a celestial body.
3. The widely accepted theory about how the solar system was formed.
6. Planets that are closer to the sun than the asteroid belt.
7. The shape of the orbit of a planet around the Sun.
11. The measure of how much an orbit deviates from roundness.
12. Another term for rotating neutron stars.
13. Planets that are largely made of rock.
16. Solid objects moving through space made of a mixture of metal, rock and ice.
18. Our solar system began as a could of gas and then this forced acted upon it to make it collapse upon itself.
23. Same as a meteoroid but bigger in size.