Rover starts crater science tasks BBC

The US space agency’s Mars rover Opportunity has begun investigating rocks along the rim of the large crater it is perched by on the Red Planet.
The rover has conducted scientific tests on Lion Stone, a 30cm-long rock by the edge of Endurance Crater. Scientists must now decide whether to risk sending the rover into the crater. There is a real possibility, they say, that it might not be able to get out.