There where two black things high up. One looked on fire, other one had glare but wouldn't say lights. moved slowly

There where two total they where both black, one looked like it was on fire and the air smelled like fire. The other looked like it glared like when light hits a mirror. They were too high to be drones but moved slow and no sound. It was like they hovered but yet floated at same time but kept same height and came at different times. The first one came around and passed by and second one came about 30 minutes later it was different had movements that where twisting but not like anything I have seen fast movement but yet slow moving. I tried to get a picture but my phone wouldn't focus that high up. No trail like you see with jets and a plane passed after it went by in another direction that you can heat planes anytime they go by. This was silent.