Chinese scientists have begun a major search for longevity genes by collecting blood samples from people in an area known for long lives.

Computerizing land records may not seem like much of an achievement; most developed countries did it years ago. But in rural India, where the majority of people are semi-literate and live in remote communities unconnected by road or phone, it’s almost a revolution.

Scientists from around the world will soon gather to discuss how satellites could be used to address the world’s energy needs by relaying solar power to Earth.