Based on new evidence scientists are beginning to believe that Mars is likely to harbor life. In the past many were very sceptic whether the red planet contained life but this is slowly shifting by the found of possible biochemical processes on Mars..
Formisano showed evidence of the presence of formaldehyde in the atmosphere. Formaldehyde is a breakdown product of methane, which was already known to be present in the Martian atmosphere, so in itself its presence is not so surprising. But Formisano measured formaldehyde at 130 parts per billion.