Add Yahoo as a preferred source to see more of our stories on Google. Neil deGrasse Tyson attends discussion event in New York City. Astrophysicist Neil deGrasse Tyson is calling on the government to ...

Steven Spielberg's new sci-fi blockbuster Disclosure Day, which hit theaters June 12, explores what might happen when the world gets undeniable proof that we're not alone in the universe. While the ...