The issue focused on studies published over the past decade by researchers from NASA and NASA's Jet Propulsion Laboratory that showed scientists could predict how NASA scientists would respond to scientific breakthroughs that scientists themselves didn't believe would ever happen. NASA scientists believe they may have reached that conclusion after NASA scientists conducted experiments that tested NASA scientists' theories about how scientific breakthroughs could affect NASA scientists. NASA scientists believe they might have reached that conclusion after NASA scientists conducted experiments that tested NASA scientists' theories about how scientific breakthroughs could affect NASA