A severe solar storm is headed to Earth that could stress power grids even more as the U.S. deals with major back-to-back ...

The team used five biological solar cells in addition to their photosynthetic bacteria to create an artificial leaf to serve ...

This window air conditioner will keep mid-sized rooms comfortably cool without driving your electric bill through the roof, ...

In this heat, an air conditioner is a necessity. I had window units for 20 years, but for ease, efficiency and quiet operation, nothing beats central air. My central AC is about 20 years old, which is ...