Recycled telescope now a bomb detector!

Scientists are using leftover parts from a telescope to detect dirty bombs, weapons which combine radioactive material with conventional explosives. The recycled telescope once spotted gamma rays streaming from radioactive elements in the sky. Now its technology is being used to detect gamma rays emitted by radioactive substances, such as plutonium, uranium and caesium, which could be used in dirty bombs. NASA are certainly leading the way in reducing, reusing and recycling. Read more here.