Porch lights are useful for safety and security, but should you leave them on all night? We asked security and energy pros to ...

If you've always wanted to see the ocean's waves glow a neon blue, these Southern California beaches are where you're most ...

It was a pitch-dark night, but I could still make out a smile lighting up ... And when conditions are right, the ocean’s surface lights up at the slightest touch, giving off an alien glow that rivals ...

The northern lights were visible farther south than normal Tuesday, April 15, and they'll be visible again for some residents tonight, April 16.