I saw a black pill like object moving across the sky from the south going north while looking to the west.

Looking to the west, this object moved from south to north at a constant pace. Too fast for a plane/drone, too high for a bird and did not leave a contrail. Object was a black pill shape and did not have any lights flashing/strobeing and did not reflect any sunlight. At first I heard the sound of a plane in the distance but did not see any planes anywhere until I noticed what I thought was a black bird soaring high in the sky then realized it wasn't a bird or a plane. Object was making a humming sound the entire time of travel. I used to live by Offut AFB and have seen some weird lights and vehicles in the sky as well as odd sounds. Never seen anything like this. This Object was definitely not a b52 at cruising altitude or a plane.