Across
- 2. "Dirty snowballs" in the sky made of ice, rock, and dust
- 5. A big ball of rock that reflects the light from the sun; a satellite of Earth; looks like it changes shape over 30 days but its really how it reflects light
- 7. North Star; star that never moves in the sky
- 13. Place where astronauts from many countries can live and work in space for months at a time
- 14. A meteoroid that makes it through to the ground;made of iron and rock
- 15. We live in this galaxy
- 17. Shapes and patterns in the sky made of stars
- 18. 1969, first stepped onto the moon
- 20. Frozen and stormy world, bluish in color, with the strongest winds in the solar system
- 21. All the planets, moons, and other heavenly bodies that move around the sun .
- 25. When the moon moves between the Earth and our Sun and casts a shadow
- 26. 7th planet from sun with faint rings and more unknown
- 29. Telescope that uses radio waves, which are longer than visible light rays, to learn about the universe. Gather information that cannot be seen
- 30. 15 million years ago, all the matter in the universe was packed into a super-dense ball. Something cause this ball to explode which sent chunks of matter flying out into space becoming the stars, planets, and everything else in our universe.
- 31. What keeps moon orbiting Earth- the force between bits of matter
- 32. The first woman assigned to a space shuttle mission in 1983.
- 34. Help astronomers learn about distant planets, stars, and galaxies since the 1600s!
- 35. Closest planet to the sun, gets very hot and very cold depending on which side is facing the sun
- 36. Season Earth has when Earth is facing away from the sun
- 37. Any heavenly body that orbits another. Comes from the Latin for “attendant”
- 38. What is between Mars and Jupiter that are thousands of chunks of rock and metal that are orbiting the sun.
- 39. Season Earth has when Earth faces the sun
Down
- 1. Telescope that uses concave mirror 8 ft. across to collect light from faraway stars and radios information back to Earth
- 3. An idea or explanation based on the best available evidence
- 4. Big comet seen in 1531, 1607, 1750s, and 1986 (you may see it around 2061) Named after the scientist that found it
- 6. Telescope that uses lenses and mirrors to focus rays of visible light
- 8. 3/4 of this planet is covered in water and is very cloudy; only planet that maintains life
- 9. Today American astronauts fly on this to the International Space Station
- 10. The first woman to walk in space in 1984 spending 3 and a half hours outside the shuttle, testing whether they could refuel a satellite in space
- 11. Phase of the moon when it can’t be seen at night because its overhead during the day but the bright sunlight makes impossible to see it
- 12. Carries cameras, computers, and scientific instruments far into space and sends radio signals back to Earth
- 14. "Red Planet" because of the rusty iron on the planet's rocky surface
- 16. 1993, She was the first Hispanic woman among the American astronauts
- 19. Largest planet; mostly made of hydrogen, in liquid form on inside and gas on outside
- 22. In 1961, sent the first man into space
- 23. Ended its space shuttle program in 2011 but the space station remains in use housing a 6 person crew
- 24. Argued that the sun, not Earth, was at the center of our solar system
- 27. Second largest planet with rings made of ice, dust and rock.
- 28. 1992, She flew her first shuttle mission on the Endeavour making her the first African American female astronaut
- 33. Cloudy planet known as "morning star" or "evening star"