We May Have Just Seeded Life On Mars

“Wouldn’t it be tragic if some future expedition were to discover life on Mars only to discover later that it had actually discovered life from Earth?”
 — discusses the disturbing possibility that

, in the event that the Mars Curiosity Rover discovers water or ice, a few of the 250,000 bacterial spores with which human scientists contaminated one of its drill bits could just settle in and set up shop. That’s probably how life started here on Earth, when you think about. Some brainiac alien from the Andromeda Galaxy sneezes on a piece of the shiny tech equipment he’s loading on to a Milky Way Explorer Pod. 3500 million years later, Charlie Sheen has a hit new show.