The rare and colorful lights sometimes seen before major earthquakes could come from electric charges in certain types of rock. Dara Kerr was a senior reporter for CNET covering the on-demand economy ...

It's a lovely summer weekend morning. We relax in our living room with the sunlight coming gently through the windows. We glance outside and can see the green leaves and watch birds in the yard. We ...

If you've ever been hanging out on a tall hill at night, you've probably seen some lights flashing in the dark sky above. No, it's not a mysterious UFO — the kind there are problems studying – spying ...