The wind on Saturn's largest moon is strong enough to blow around rocks of up to half a metre in diameter, which could put ...

Blue boulders have been seen on the surface of Mars in a vast crater believed to have been created by an asteroid. Volcanic basalt stones with an azure tinge were photographed by the car-sized ...

After the planet lost much of its atmosphere, however, surface water could no longer ... according to new University of Colorado Boulder research. When sea otters were reintroduced along the ...