Often the best way to save on your electricity bills is to make small changes to your everyday habits. Try this light setting ...

A bus being treated with ultraviolet light in Shanghai, China. Although types of UV light are already in use to decontaminate vehicles and indoor spaces, the wavelengths used are dangerous to people.

Earth's satellite problem is only getting worse as time goes on and more satellites are sent into orbit. One of the chief issues with the number of satellites in orbit is how much they can affect our ...

As the old saying goes, many hands can make light work. They can also work together to make light vanish. Urban light pollution is a large-scale issue, but individual households can help their ...

RIDGEFIELD -- If, at night, you drive to the top of Governor Street and then look back, what you see is a town fully illuminated, basking warmly in its own glow. It may look terrifically picturesque, ...