NASA have released an image of the first sample of powdered rock extracted by the Mars Rover Curiosity's drill.
It is the first sample from inside a rock on another planet.
More top news
ComRes polling agency chairman says the next 100 days will be be gruelling in the most uncertain General Election that anyone can remember.
Pictures taken 70 years after the liberation of the Nazis' Auschwitz death camp echo the horrors of its Holocaust past.
Some 60 years after the brutal post-war communist regime 'disappeared' dissidents, the secrets of Poland's unmarked mass graves are exposed.