building block of the university, the so-called god particle. it is an elusive subatomic particle that gives mass to all other particles in the universe. geneva based researchers say the particle closely resembles the one predicted in 1964 to help explain the creation of the universe. a quick thinking air traffic controller saved the life of a private pilot flying from dallas to michigan. she noticed he was slurring his words sounding kind of like this -- [ indiscernible ] >> controllers knew it wasn't alcohol, that the pilot was actually suffering from a lack of oxygen. the plane was in crowded airspace at 27,000 feet. she told him to fly at a lower altitude which did the trick. >> you're sounding a little better. >> hollingsworth gets goose bumps thinking what could have happened.