Witnessed strobes of light spinning in a circle and then leaving our atmosphere.

We were camping on a ridge that overlooked a canyon. Right at sunset while we looking at the view a bunch of lights came together and started to spin around like a strobe light would look. The object had no real definition it reminded me of a chameleon. I looked at my boyfriend and then in an instant it took off. Dark set in shortly and then the real show began. The object danced in the sky in three different locations before it left. The whole event lasted over three hours. Almost a year after the incident my boyfriend heard a radio show where a woman was describing the same three point location of the object from the previous summer. She was calling from Reno, so she would have witnessed the same sky we were looking at. No one has ever believed my story. Even the people in the camping group dont believe. But I do. This wasn't my first observation of unexplained objects in the sky. When I was 10-12 years of age I witnessed two lights in the sky go to one light and then took off out of sight. This all happened in Mendecino Co.