Space Crossword

1234567
Across
  1. 4. The planet we live on
  2. 5. The planet we can see at night
  3. 6. How an astronaut flies into space
  4. 7. A small planet, but large meteor
Down
  1. 1. These people travel into outer space
  2. 2. The red planet
  3. 3. The hottest star in the solar system that gives us light
  4. 5. Small rocks in outer space that explode when they hit Earth's atmosphere
  5. 6. They shine at night