Observed rectangular object in air heading ne

At about 4pm, 7 October, 2018 my wife and I were traveling southbound on I75 near Mesquite, Tx. I looked south east and observed a large rectangle in the sky below the clouds. The object was larger than a piper cub airplane. There were no aircraft in the area. It had a dark spot near the leading edge. It stayed at the same height and orientation. It traveled at a fast airplane speed in a north easterly direction along the axis of the flat plane of the object. I took pictures of the object as we traveled. The sighting lasted for about ten minutes. I am a 31 year Army veteran and have worked security for the past 10 years.

https://www.texasufosightings.com/buzz/dark-rectangular-ufo-photographed-in-the-daytime

https://www.maxpixel.net/Universe-Flying-Spaceship-Ufo-Space-Science-Alien-782655

ON SEPTEMBER 15, 2018 @ 535 AM MY WIFE AND I WERE PREPARING BREAKFAST BEFORE LEAVING FOR WORK AT HOSPITAL. THROUGH OUR KITCHEN SINK WINDOW WAS A HUGH WHITE FLYING SAUCER THE SIZE OF A MANSION IN STATIONARY POSITION AT CORNER OF NEIGHBORS HOUSE ABOUT 200 TO 250 FEET ABOVE. IT WAS GLOWING WHITE WITH FLICKERING LIGHTS REPEATING BACK AND FORTH. AFTER THREE MINUTES SLOWLY WENT DOWN STREET WHERE WE OBSERVED IT REPEATING SAME MANNER IN FRONT OF OUR HOUSE FOR ABOUT ONE MINUTE. IT MOVED LIKE THE SPEED OF LIGHT NE AND OUT OF SIGHT IN UNDER FIVE SECONDS.

Enormous glowing white boomerang

Absolutely enormous glowing white boomerang shaped object flying north to south. I first thought it was a cloud, as I saw it out of my periphery, but realized it was moving extremely fast. It had to be very high, as there were no distinguishing characteristics. This object was truly enormous and completely silent. The color was completely even, it really looked like a lit cloud. Multiple planes were in the sky, as DFW and Love Field airports are close by. This occurred about 9:50 pm (CST). I was out with my dogs. Biggest object I’ve ever seen flying in the sky.

"CGI mock-up of a TR-3B" https://www.express.co.uk/news/weird/881923/UFO-aliens-TR-3B-triangle-UFO-tailed-military-helicopters