What is the purpose of NASA and why is it important?

Answer:. NASA's mission is to explore space and aeronautics, or flight research. NASA is also responsible for making sure that the United States space program is conducted for peaceful purposes that can help mankind.Step-by-step explanation:. NASA's mission is to explore space and aeronautics, or flight research. NASA is also responsible for making sure that the United States space program is conducted for peaceful purposes that can help mankind.