10/16/2020 6:45 pm, just after sunset but still lots of daylight. looking east from north melissa tx, at the 10:00 position in the sky saw a stationary object with winglike structures but no visible fuselage. watched for several minutes, a red light came on, blinked once, went off. object remained stationary at approx 5,000 ft altitude judging by nearby aircraft in an approach lane to dfw. this is a busy aircraft lane, should have been spotted by aircraft incoming ne to sw approach to dfw. observed for approx 5 minutes, went in to get others and a camera, but it was gone when i came back outside. maybe two minutes later - it had vanished...We searched the sky in all directions. could not have been drone or conventional aircraft, no way it could have gotten out of sight that quick.