"Now, if you know anything about UFO sightings or you've done research, you know that a lot of times two things are connected to UFO sightings," said the two-time MVP and Super Bowl champion. "One is the presence of fighter jets. And two, there's a lot of sightings around nuclear power plants. So to tie it all together, the alarm we heard from 30 miles out was a nuclear power plant that had an alarm that went off."