In June 1947, pilot Kenneth Arnold had a sighting of nine objects flying near Mount Rainier in Washington. He estimated their speed was over 1,200 miles per hour. This sparked significant interest in UFOs. In January 2009, multiple witnesses in Morristown, New Jersey reported seeing five red orbs floating across the sky. Area 51 in Nevada was established in the 1950s as a secret military site for testing advanced aircraft like the U-2. It has become notorious as being linked to alleged UFO and alien encounters.