Light pollution—the needless shining of bright lights ... of faint stars and galaxies lost in the glare. Fortunately, there are solutions that save money and preserve the dark night sky.

Christian Nguyen: This car lights up with something called LumiLor. It's not LED light, but paint. And not just glow-in-the-dark paint, but a special kind of paint that turns on and off by ...

March is historically the most active month of the season for auroras. Tonight could be a night that validates that. G2 ...