You can't hide from the infrared beacon -

"Night Light"
digital collage by Mick Mather

I was playing around again this afternoon, wondering what to do with a very, dark photograph that may have been taken in very low light or at night. My mind was wandering off into the realm of infrared sensors, night vision technology and motion detection imaging as it might occur in, let's say, a sci-fi thriller such as The Terminator. Or, how about the original Star Trek - The Motion Picture? I can almost hear the voice of V GER in it's humanoid embodiment - taking the form of Llia, a Lieutenant on the Enterprise portrayed by Persis Khambata - that says "carbon units have infested your planet - must eliminate all carbon units".