While searching through NASA photos, I came across this Bat like UFO in the Mercury Mission MA-7 photos. This missions goals was to make 3 earths orbits before coming home. It was launched on May 22, 1962. We are looking at a very balanced looking craft from the top view. It stands out a lot from the clouds far below it. If you don't believe me, please check the NASA source in the link above. The coloration of the UFO is white to match the clouds for anyone looking up...but stands out because it so far above the clouds. SCW
I also found four photos with a blurred cross in the window...which makes me wonder if the astronaut hung up his necklace in the window for good luck, see photos below.