South African diamond mines are closing due to weak sales and lab-grown stones

A 12-year-old in Colorado built a lead detector out of carbon nanotubes after watching the Flint water crisis unfold, and her sensor can test water in seconds instead of sending a sample to a lab and waiting days for the result

Some Scientists Have ‘Magic Hands’ in the Lab. This A.I. Is Learning Why.

We lab-tested 7 TVs for color accuracy - and the winners weren't Sony or Samsung