The team will gather data on "events in the sky that cannot be identified as aircraft or known natural phenomena -- from a scientific perspective," NASA said it was interested in UAPs from a security and safety perspective. There was no evidence UAPs are extraterrestrial in origin, NASA added. The team will be led by astrophysicist David Spergel, who is president of the Simons Foundation in New York City. NASA said the limited number of observations of UAPs made it difficult to draw scientific conclusions about the nature of such events. A first step for the team would be to...