This Avatar Android Will Perform Life-Threatening Work on the ISS

There are certain areas of the International Space Station that most astronauts would rather not visit—like the exterior. But sometimes, somebody has to clamber around out there, looking for hull cracks. That's when the ISS calls on Russia's SAR-400 telepresence assist-droid. » 4/25/12 11:30am 4/25/12 11:30am