Across
- 7. A tool that uses lenses or mirrors to gather and magnify light from distant objects.
- 10. The change in the frequency of sound or light as an object moves closer or farther away.
- 14. ______ Velocity The speed at which gas is expelled from a rocket, creating thrust.
- 15. A method of combining data from multiple telescopes to create a more detailed image of space.
- 16. ________ Satellites: Man-made objects orbiting Earth, like GPS satellites.
- 17. A large group of billions of stars, gas, and dust bound together by gravity.
- 18. The distance light travels in one year, about 9.46 trillion kilometers.
- 19. A meteoroid that burns up as it enters Earth's atmosphere, creating a 'shooting star'.
- 22. A tool that shows direction, pointing toward magnetic north.
- 25. A cloud of gas and dust in space, often where new stars are formed.
- 27. Natural satellites that orbit planets.
- 29. A device that splits light into its colors (spectrum) to study the composition and properties of stars or planets.
- 31. A change in the color of light from a star due to its motion: ____ shift means moving away.
- 32. An ancient tool used to measure the position of stars and planets for navigation.
- 34. A telescope that detects radio waves instead of visible light, helping scientists study faraway objects in space.
- 35. A condition where objects appear weightless because of free-fall motion in space.
- 36. The direction of an object in the sky, measured in degrees from north.
- 38. The apparent shift in the position of a star or object when viewed from two different locations.
- 39. ______ Satellites: Celestial bodies like moons.
- 41. How high an object is in the sky, measured in degrees above the horizon.
- 42. A stream of charged particles released by the Sun, which can affect Earth's magnetic field.
- 43. An outdated model of the universe where Earth is at the center, and all other celestial objects orbit it.
- 44. Rockets with multiple sections that drop off when their fuel is used up to make the spacecraft lighter.
- 45. A change in the color of light from a star due to its motion: ____ shift means moving closer.
- 46. Small, rocky objects that orbit the Sun, mostly found in the asteroid belt.
- 47. A flight path that reaches space but does not complete an orbit around Earth.
- 48. Phenomena that happen in the sky, like eclipses, meteor showers, or supernovas.
Down
- 1. A meteoroid that survives its passage through the atmosphere and lands on Earth.
- 2. The point of view or perspective used to observe and measure motion or position.
- 3. All of space, including galaxies, stars, planets, and everything that exists.
- 4. A model of the solar system where the Sun is at the center, and planets orbit it.
- 5. The range of all types of light waves, including visible light, radio waves, X-rays, and more.
- 6. System The Sun and all the celestial bodies that orbit it, including planets, moons, and asteroids.
- 8. Natural objects in space, such as stars, planets, moons, and asteroids.
- 9. A group of stars that form a recognizable pattern in the night sky.
- 11. The cargo a rocket carries, such as satellites or scientific instruments.
- 12. A smaller, recognizable pattern of stars that is part of a constellation, like the Big Dipper.
- 13. A massive, glowing ball of gas that produces light and heat through nuclear fusion.
- 17. An orbit where a satellite stays above the same spot on Earth as it rotates.
- 18. A close orbit around Earth, where the International Space Station (ISS) is located.
- 20. A stretched-out circle or oval shape, often used to describe the orbits of planets.
- 21. The oval-shaped path that planets and other celestial bodies follow around the Sun or other objects.
- 23. The force of attraction between all objects in the universe, proportional to their masses and distance.
- 24. A small rock or particle from space, often from a comet or asteroid.
- 26. Icy bodies that release gas and dust, forming a glowing tail when they approach the Sun.
- 28. A method for measuring distances to faraway objects by forming a triangle with two observation points.
- 30. Using a planet's gravity to boost a spacecraft's speed and change its direction.
- 32. The average distance from Earth to the Sun, about 150 million kilometers.
- 33. Charged _______ Device: A light-sensitive sensor used in telescopes and cameras to capture detailed images of space.
- 37. A robotic spacecraft sent to explore space and gather data without humans on board.
- 40. Large celestial bodies that orbit a star and do not produce their own light.