Sadie's Space Crossword

3. the planet we live on
6. the universe seen as a well-ordered whole.
7. a small rocky body orbiting the sun
10. a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
12. the time or date, twice each year when the sun crosses the celestial equator, from which day and night are almost equal
13. a celestial body moving in an elliptical orbit around a star.
15. a region of space having a gravitational field so intense that no matter can escape.
17. measure of the brightness of a star or other celestial body
19. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
22. a group of stars forming a recognizable pattern .

1. a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright
2. a small body of matter from outer space that enters the earth's atmosphere and appearing as a streak of light.
4. designed to travel through space or to launch a spacecraft.
5. icy, small Solar System body heats when passes the sun. This produces a visible atmosphere and sometimes also a tail.
8. an obscuring of the light from one celestial body by the passage of another
9. an instrument designed to make distant objects appear nearer
10. the star which the earth orbits
11. the branch of science which deals with space
14. the curved path of a celestial object or spacecraft around a star, planet, or moon.
16. determined by, or resembling the moon.
18. all existing matter and space considered as a whole
20. the natural satellite of the earth, visible at night
21. the amount of matter in an object