In the historic first manned mission to Mars, two Astronauts were charting the Martian surface.

"Look at that," said one to the other, "how beautiful this alien landscape is, untouched by man."

At that point, he was cut off, as he found his radio communications knocked out by unknown interference. Using an emissions detector, they followed the source of the interference until they reached the rim of a crater.

"Do you see what the source of that noise is?" asked the first astronaut.

"I don't know," said the second, "but it might be coming from that Starbucks behind you."