Answer:
Lunar missions were strong for a few years until NASA ran out of money to support them.
Step-by-step explanation:
In this text, we learn about the lunar missions that NASA sponsored during the late 1960s and early 1970s. The first of these missions took place in 1969, with six missions following this. However, we also learn that NASA stopped sending these missions because it ran out of funds, as the United States government decided to stop funding them. Therefore, this is the central idea of the text.