Study co-author David Clements, an astrophysicist from the Imperial College in London states, "It's not a smoking gun. It's not even gunshot residue on the hands of your prime suspect, but there is a distinct whiff of cordite in the air which may be suggestive Whenever we hear about new planets being discovered or new stars and galaxies that are seen never before, to surface and awe astronomers, one thought surely comes to our mind -- does it have life in it? Are we no longer alone?