1. In phase three, China will send another robotic probe to gather lunar samples, possibly by 2020.

2. The drill of course had to be strong enough to cut through the lunar surface layer.

3. Congress and the administration worry annually about the cost of a lunar program and agency.

4. The first two launches would be a moon injection stage followed by a lunar lander.

5. The memorial also involves a recording of the entire launch and lunar burial.

6. He added that once return trips are standard, lunar flights will have lots of business applications.

7. Among the experiments the rover will conduct are investigations of the the lunar topsoil.

8. Observers in other parts of the world will have an even better chance to see the lunar eclipse.

9. Orion is designed to meet the requirements of lunar and asteroid missions.

10. The handset comes in black with lunar gray trim and a black front lens.

11. Based on the lunar calendar, the date changes every year.

12. At the time, a few scientists were worried that a spaceship would sink deep into the lunar dust.

13. They conducted two spacewalks, spending nine hours altogether out on the lunar surface.

14. Previous studies have observed traces of water ice in shadowed regions at the lunar poles.

15. The extreme cold from the lunar surface was creeping into the descent stage after engine shutdown.