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Across 1. A hole caused by an object hitting a planet or moon. 5. To increase in size. 7. To decrease in size. 8. Lunar soil. 9. A small natural body, which orbits a large one. 10. A mountain. 11. The hiding or dimming of one celestial object by another object. 13. The last name of the first astronaut to walk on the Moon. 15. Long, narrow depressions in the lunar surface that resemble channels 17. Latin word for sea. These are basalt-filled impact basins. 18. The cycle from one new Moon to the next new Moon. 19. Sunlight reflected from the Earth that is seen on the lunar surface.

Down 1. The Moon travels in this direction around the Earth. 2. Streaks of light-colored material ejected from craters on the Moon. 3. ________Moon whereby the Moon is lined up between the Earth and the Sun. 4. Eugene __________was the last astronaut to walk on the Moon. 6. The name of the NASA space program that took humans to the Moon. 12. This mineral makes up most of the lunar surface. 14. Older, lighter, and more densely cratered area of the Moon. 16. This was discovered on the Moon in 2009.