A hot carbon-rich gas giant exoplanet, WASP-12b, has been discovered. As the lead author of the paper being published today, Nikku Madhusudhan, says: ""This planet reveals the astounding diversity of worlds out there". In particular, the discovery supports theories that there are likely to be planets made of diamond and graphite out there.
One small step for a robot, one giant leap for robot-kind... but not yet. The Robonaut R2 (sic) will have to wait at least another three weeks, as the final mission of Space Shuttle Discovery is delayed.