Across
- 5. Serious study of a subject that is intended to discovernew facts about it.
- 6. Dig into the ground in order to get gold, coal, etc.
- 7. Try to find out the truth about something.
- 9. relating to the moon.
Down
- 1. A found hole in the ground made by something that fallen.
- 2. All space incluiding the stars and planets.
- 3. Help something develop and be succesful.
- 4. A shelter of headquarters from wich explorations can depart.
- 7. Subjects or problems that people discuss.
- 8. A long trip especially in a ship or space vechicle