Question: I’m wondering about a light that seems to only be on at night on the traffic lights. It’s a small purple or blueish light that’s near the traffic lights. I’ve tried to figure out what its ...

Traffic lights are so ubiquitous that we hardly ... for a timed switch to a “flash only” mode after a certain time of night when traffic drops off. More complicated electromechanical ...

The Northern Lights may be putting on an encore performance Saturday night after putting on a minor show Friday night, only this time the display has the potential to be longer and brighter.