Mars rover takes rock samples; is life possible on planet?

Pasadena, CA, United States (4E) – The Mars rover Curiosity has drilled a hole
into a rock on the Red Planet to put collected rock powder on its built-in
laboratory instruments for analysis, according to NASA.
The car-sized Curiosity sent images of the drilled rock to NASA's Jet
Propulsion Laboratory (JPL) in Pasadena on Saturday [...]
Source:
http://www.ezonearticle.com/2013/02/10/mars-rover-takes-rock-samples-is-life-possible-on-planet/