2015-02-20, Houston, TX, US

(MUFON) --While walking from my apartment to parking lot, on clear night I looked south toward the airport I'm retired but still love aircraft, so I always scan the skies. Off in the distance to the south I observed a bright royal blue light just above the horizon. Me being in aviation for 43 years with a FAA A&P certification I knew this was NOT a aircraft. As I watched I got my cell phone out and took a couple of photos and 2 videos (video not very good). I watched with experienced eyes for the details that differs a aircraft from a unknown object. The object slowly moved from south to north increasing in size as it come closer. At about 2 miles it made a 90 degree horizontal turn to the East, a exact angle of 90 degree turn, no sweep turn and no loss of altitude. Traveled about a mile then turned a 180 degree turn and continued heading west about 2 miles made another 90 deg. turn to the south and shortly turned again East for a few seconds then turned south until it disappeared over the horizon. It was moving in the same airspace as several aircraft on departure from Bush Intercontinental Airport. This object had NO aircraft resemblances. This was my first UFO in over 43 years working and flying on all types of aircraft. During the video my cell phone completely turned off and I had to restart it to continue.