2 gleaming white objects flying in formation across the sky

My mother and I saw several objects in the sky at approx 430pm this afternoon November 9, 2023. It was about 80° with mostly clear skies and some stratus clouds way up. They were heading about 30°N and flew across
half the sky for about 30 seconds while we watched from the dock. Waaay high up - they went into super high stratus clouds towards the end but we could still see them through the clouds for a bit. I saw 2 aircraft with no wings - but there was something folded over on the sides. And they were big enough that we could see that detail from that high. I saw the 2 aircraft flying in perfect formation, but one of them kindof twisted and looked like there could be two craft on top of each other, then they merged again. They gleamed white in the sunlight. There was no trail behind them and absolutely no sound. Mom agrees that we have absolutely no idea what they were. My father was an engineer for the Air Force and designed several planes, including working on the B2 stealth bomber, so my mother and I are both familiar with different aircraft. We currently live near NAS JAX and are used to seeing all sorts of aircraft, but these were like nothing we have ever seen.