Images taken by NASA's Mars Global Surveyor spacecraft suggest the presence of liquid water on the Martian surface.
Asafa Powell is aiming to run under 9.7 seconds next season after enjoying an electrifying year on the track.
India need self-belief and patience to re-build their soccer team, according to new national coach Bob Houghton.
Former champion France sent current champions Brazil back home after a brilliant Thierry Henry goal that sealed the last quarter-final.
