Research & Innovations

A new look at retrofitting power plants

Paralyzed rats walk again with help from scientists

Researchers tracing trash

Swanky space hotel concept provides a full futuristic experience

Indian doctor saves water - and lives - with eco-friendly toilets

Media Mayhem: Hope and change 2.0

Watch: Shuttle Endeavour returns to Earth

Farm time

Media Mayhem: 7 environmental stories that are free of doom and gloom

Video: Can Bill Gates control the weather?

Mob justice

A light in the darkness