[Quix]

Reportedly,

the ionization flow over the outer surface as a function of the propulsion system causes blurring visually and in photos. I would assume the same would be true in IR.

But, please go ahead and keep your skepticism in great shape. It may help you sleep more soundly at night.

[Final Authority]

Explain the cause of ionization? If there was ionization the surfaces would be detectable in the visible spectrum. They weren't, apparently. So you are all wet, as are the other experts writing on this thread. I believe in the idea that intelegent life may live elsewhere, especially in your neighborhood.