Science: Methane has been observed in the atmosphere of Mars during the spring and summer. Methane has some geochemical sources...and it can also be generated by life. Awesome.
It's contest time! Can you identify the cars our heroes are driving? If you think you know the answer, write it down on a postcard and email it to us. The first lucky winner will receive our prize, Carl Kasell's voice on your home answering m... I mean, the lucky winner will get to see a link of their choice pimped right here in this very spot. Update: The contest is over. Thanks to those who participated!