Strange metallic, possibly triangular or pentagonal shaped, single object in sky above Dallas, TX on 8-19-21

We were in the backyard on the evening of August 19th, 2021. We saw what we initially thought were three different planes flying in the sky, one small, privately owned plane low flying, and two commercial planes that appeared to be at cruising altitude. We quickly realized that one of the "commercial planes" did not look like a plane at all. It wasn't shaped like a plane, and it wasn't moving in a normal, uniform way. It also came from a very high elevation, to a much lower elevation, in an unusually short amount of time. I ran in to grab binoculars, and through the binoculars, I saw something that was unusually shaped (possibly diamond/triangular/pentagonal shaped), and there appeared to be 4-6 lights/engines/something glowing, emanating from the shape, but we didn't see anything that looked like a heat signature, or any other signs of propulsion. It appeared to be a silver/metallic shiny object. One of us thought the shape had a haze around it. When I gave the binoculars to the other person, and I looked back, the shape/craft/thing was gone. We only saw the single object, but the sky also seemed to have silver flashes occurring while we saw the object, but that could have just been glare from the sun. It was a perfectly clear sky, and the sun was still shining. The two people that saw this object are both college educated, and have professional occupations. Neither people have ever seen or reported anything like this prior to the 19th.

 I wish I had started filming as soon as I saw it approaching. Got the distinct feeling it was abnormal as soon as I saw it. I noticed quite far away but felt silly doing so if it were a ballon or something.. there was no sound from the object at all, and it was cruising within the altitude range of ascending/descending aircraft.. I did take other reference photos including birds and jets to demonstrate it’s relative size and speed. From my estimate and position, it was slightly less than half the size of a 737 fuselage; at least 2x the speed. There was also a 5-10mph east wind and it was traveling against that from a straight course (38*NE) darting in an instant to 300*NW. The object was in my view for about 2.5 minutes.. here is one of the pics with a regular 737 that I took along with another vid of the 737 coming into land.
 

11 pm on July 20 we record this object
Was slow compared to other object we seen on the past and super large, we use a celestron cpc 1100 11 inch telescope and a galaxy s 10+
The video is 1:32 seconds we try to upload 5 times to this website and was no working
We cut the video to 12 seconds to try again, I have the complete video on my phone,
With this telescope we can see details on the international space station but is hard to see this object, we send you pictures for reference of the international space station we take with our telescope, contact me if you need more information thank you.

Saturday December the 5th 2020 at about twenty till 9:00pm. I'm facing southeast, standing north of and close to highway 635 halfway between George Bush tollway and I-35. This is on a cell phone camera at 1080p at 4x zoom so it is kinda crappy. The pulsating orbs were actually slightly brighter to my naked eye and that is the moon to the right. The triangle tip disappeared first as if rising above the clouds. Then if you look close, after I zoom out and in real quick, you can see behind the clouds a faint pulsating light going from west to east in line with the remaining two lights

Witness photo

UFO was black, was not very large (maybe 10 or 15 feet wide), made no noise at all, was not traveling very fast (about the same speed a commercial jet fly's when it is about 40 miles from landing). We witnessed this from our back patio, and kept eyes on it for as far as we could see it (which was several miles).

I attached the pictures. It is grainy because I took it on my iphone XS max on 10x zoom.