Caverns of liquid salty water which could provide a home for extra-terrestrial life may lie beneath the icy surface of one of Saturn’s moons, scientists believe.

Pluto has three moons, not one, new images from the Hubble Space Telescope suggest.

A chunk of foam insulation fired at shuttle wing parts blew open a gaping 16 inch hole, yielding what one member of the Columbia investigation team said was the “smoking gun” that proves what brought down the spaceship.