On may 13th at 9:10pm cdt at night in spring, texas (a north houston suburb), i observed a light high in the sky traveling from the south to the north. at first i thought it was a satellite, traveling as fast as one i just observed a moment early moving from the northwest to the southeast over houston. just as this object passed the planet jupiter to its west, the brightness of the object intensified immensely for a second(e.G. like a flash of light), then made an abrupt 90 degree turn to the east with its brightness returning to its previous intensity. it continued to travel to the east and disappeared into the light pollution of the houston metropolitan sky. i've never seen a object make that sort of maneuver before. i heard no sound since it appeared to be at a very high attitude.