Unknown light in sky, "blasted" off and vanished.A friend and I were leaving another friends house. I looked up in the sky and saw a moving "star". Jokingly, i said to my friend "hey look, a ufo". At which point the 3 of us stopped and watched the mysterious light.It looked as if it wasn't within our atmosphere, as bright and as big as all the other stars in the sky. At first it was only moving in a straight line, but then started to "navigate" and change direction. This occured within a min or less until the object stopped completely. Right after it stopped, it started to get brighter, slightly changing color, but mostly just bigger and brighter. At the peak of the bright light, the object shot off into the distance, with a brief trail following, but quickly faded away.I myself am a strong believer in the unexplained, although i have seen other strange obejects in the past, this was the most recent and most interesting.If anyone has a similar sighting, or maybe an explanation to what we saw, please feel free to contact me through email.