How can the latest technology, such as solar cells, be improved? An international research team led by the University of ...

We tested four super bright flashlights that range from a laser-powered flashlight that shoots a beam over a .5 mile to a ...

Find the perfect LED light bulb for every room in your home with our top picks for brightness, efficiency and style.

NASA astronaut Don Pettit got this gorgeous video of the Northern Lights from an unusual vantage point -- skimming above the ...