Across
- 1. the collection of billions of stars together that includes the solar system
- 4. people trained to travel to space
- 5. the part of the universe near the sun including the sun, eight planets and the moon
Down
- 1. the power that attracts bodies to the centre of the Earth
- 2. an object placed around a planet to collect information or for communication
- 3. Earth, Mars & Neptune are all examples of this word