The search for life in Mars is far from over. A recent discovery of a tunnel-shaped structure in Martian rocks associated with DNA found in terrestrial rocks solicits speculation of a possible sign of life in our neighboring planet. scientist confirms that all of the tunnel marks found in our planet's rocks were results of bacterial invasion as they seek foods in water which imply the presence of living organism millions of years ago. But the discovery of similar tunnel in the Martian rocks did not produce any DNA extraction that would have confirm their enduring speculations and quest for life beyond earth. However, scientists reason out that two possibilities might have occureds in Mars that extraction of DNA deemed impossible.

They suggest that there is an abiotic way, meaning it is not bilogical, in producing the tunnel which they have yet to discover and secondly conditions in Mars makes DNA preservation an impossibility. The quest continues.