Martian meteorite proof that Mars could host life

MANCHESTER, England, Sept. 17 (UPI) -- Scientists say a cavity inside a Martian meteorite once held water, further evidence Mars has all the ingredients for life.

The meteorite in question goes by the name Nakhla; it was blasted off the surface of Mars during an impact more than 1.3 billion years ago and later fell to Earth's surface. The Martian meteorite offers scientists a rare glimpse of Mars' geological history.

While examining the rock, scientists found a small cavity deep inside the meteorite. Upon further examination, researchers at the National Technical University of Athens and University of Manchester determined the cavity once contained water -- further proof, the scientists say, the Mars could support life, and that life may still be lurking below the Martian surface.

"We have been able to show the setting is there to provide life," explained Ian Lyon, a professor at Manchester's School of Earth, Atmospheric and Environmental Sciences. "It's not too cold, it's not too harsh."

"Life as we know it, in the form of bacteria, for example, could be there, although we haven't found it yet," Lyon added. "It's about piecing together the case for life on Mars -- it may have existed and in some form could exist still."

Lyon and his colleagues plan to probe further and scour the meteorite for other biomarkers, more certifiable evidence of living organisms.

"Before we return samples from Mars, we must examine them further, but in more delicate ways," Lyon said. "We must carefully search for further evidence."

The initial findings of Lyon and his fellow researchers were published this week in the journal Astrobiology.