The short answer is, yes, maybe. Probes intended to land on other planets are sterilized, I believe, to try to avoid such contamination. It's a long shot that

The short answer is, yes, maybe. Probes intended to land on other planets are sterilized, I believe, to try to avoid such contamination. It's a long shot that such contamination is possible, and the sterilization probably isn't perfect, but there's a general consensus that it's probably not impossible, and hey, it'd be pretty dumb to at least not like wipe down the probe before shooting it into space.