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Re: NASA TECHNOLOGY HELPS SMITHSONIAN PRESERVE THE STAR-SPANGLED

Paul Johnson wrote:

... IR imaging systems can and do reveal the previous location
of an object but they cannot and do not capture an image of an
object after it is gone.

I remember reading about the IR picture of a bed in a motel, taken
half an our after the customer checked out. It was later used to
contradict his claim that he was in bed alone.