POSTIES 0527 COVER
Across
- 1. a scientist who studies the possibility of life beyond Earth
- 5. someone who travels into space
- 6. To be an astronomer, you need to be really good at maths and _____.
Down
- 2. a vehicle that travels in space
- 3. the round object that shines in the sky at night and moves around the Earth
- 4. Black holes are places in space where the pull of gravity is so strong that _____ cannot escape.