"The ancient history of the two planets is similar in many ways, and it is very fascinating that in the course of evolution the two worlds have taken such different paths," explains astrobiology expert Amy Williams of the University of Florida. "If there really is no life on Mars, why isn't there? What has changed? What has happened? Why wouldn't there be? And, if there was in the past, what happened then?" Dictionary Click on a word to look it up.

An epic journey around Mars — built from real satellite and rover data — revealing the red planet as you’ve never seen it before.

Brian Barnes (Johnny Messner) wakes up in the desert wounded and with no memory and no idea why he's surrounded by eight bodies, a van with four million in cash and a van full of cocaine. Brian is pursued by not only notorious drug lord Danny Perez (Danny Trejo) who desperately want his money back, and DEA Agent Rooker (Dolph Lundgren), but also a by the corrupt Sheriff Olson (Michael Pare) who will stop at nothing to get his hand on the new found fortune. On the run, Brian discovers the more he remembers the less he wants to know about who he really is.

Teenager Deacon works at a video shop, and his buddies, Fred and Matt, sell the bootleg porno films he acquires. Deacon gets fired, but the pals have the bright idea of filming their own Internet porn flick in order to make money and become more popular at school. Hijinks ensue as they cast and create their movie, but porn industry player Vic Ramalot grows jealous of their burgeoning success and tries to put a stop to the project.