Signatures of life detected in images of rocks using neural network analysis demonstrate new potential for searching for biosignatures on the surface of Mars by Corenblit, D, Decaux, O, Delmotte, S, Toumazet, J-P, Arrignon, F, André, M-F, Darrozes, J, Davies, NS, Julien, F, Otto, T, Ramillien, G, Roussel, E, Steiger, J, Viles, H