Across
- 3. A celestial body in an orbit around a star
- 4. An artificial body placed in orbit round the earth, moon or another planet to collect information or for communication
- 5. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
- 8. A spot or patch that appears on the sun occasionally that appears dark by contrast to its surroundings
- 11. A piece of rock or metal that has fallen from space as a meteor
- 13. A natural satellite of the Earth that by the reflected light of the sun makes it visible
Down
- 1. A unit of astronomical distance equivalent to the distance light travels in one year which is 9.4607 × 1012 km
- 2. A star which the planets in our solar system orbit
- 4. The collection of eight planets and their moons that orbit the sun, together with other smaller bodies that include asteroids, meteoroids and comets.
- 6. A small rocky body orbiting the sun. They range different sizes and some orbit Mars and Jupiter
- 7. A object in space consisting of a nucleus of ice and dust and when near the sun
- 9. A fixed luminous point in the night sky which is a large, remote incandescent body like the sun
- 10. A small body of matter from outer space that enters the earth’s atmosphere, becoming incandescent as a result of friction and they appear as a streak of light.
- 12. The curved path of a celestial object or spacecraft round a star, planet or star, or moon, especially a periodic elliptical revolution