CIA admits to being responsible for at least half of UFO sightings in the 50s and 60s

[zappaman]

326. Good explanation here...

In fact, given the apparent distance from the eyewitnesses to the lights (and between the lights), it's very unlikely that the three lights were fixed on one aircraft (or spacecraft). A solid craft that large would likely be at least the size of a football field, would have been picked up on radar at the Phoenix airport, would have blotted out the stars, and would have been noticed by hundreds or thousands of Phoenix residents. Instead, the most likely explanation is that people were reporting three independent lights in the sky. The fact that the lights changed formation during the course of the sighting is also strong evidence that the lights were independently moving objects, not part of a spacecraft.

http://www.livescience.com/33539-ufo-triangle-lights-phoenix.html