171053
This work is performed by resident scientists and engineers , faculty , students and consultants in principle areas of investigation to include space exploration , systems engineering , materials science , flight systems , aerodynamics , air traffic management , aviation safety , planetary and space science , and global climate change .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None