Space Crossword Puzzle

1. the amount by which a propagating wave is bent/bending a ray of light
2. a magnifier of images of distant objects
4. the branch of astrophysics that studies the origin and evolution and structure of the universe
5. optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
8. elongated, closed curve that describes Earth's yearlong orbit around the Sun
9. high-frequency radiation very high energy levels harmful to plants and animals
14. the entire frequency range of electromagnetic waves
16. 186,000 mi/s
18. the study of the universe beyond Earth, including the sun, moon, planets, and stars
20. path described by one celestial body in its revolution about another
21. large ball of superheated gas that gives off all the energy a planet needs
23. when a planet turns on its axis
24. a large group of stars, dust, and gas that is held together by gravity and can be elliptical, spiral, or irregular

1. when an object orbits around a star
3. shape of a planet's orbit with 2 foci
6. the "ovalness" of an orbit
7. the distance light can travel in one year
10. a large ball of rock that rotates mainly in the asteroid belt between Mars and Jupiter
11. telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece
12. the cosmic explosion that is hypothesized to have marked the origin of the universe
13. the galaxy also a candy bar
15. is a group of stars that form a pattern in the sky
17. a ball of ice with no orbit that generates a "tail" because of solar wind
19. made up of the Sun and all planets, moons, comets, and asteroids
22. either of the two celestial points at which the celestial equator intersects the ecliptic, either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length