Space
Across
- 1. is a spot or patch that appears from time to time on the sun's surface, appearing dark by contrast with its surroundings.
- 3. the natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.
- 6. an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
Down
- 2. is a celestial body moving in an elliptical orbit around a star.
- 4. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
- 5. a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
- 7. is a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 million miles).