Police cars have various lights they use to communicate with others on the road, but at times it can be hard to tell what exactly they're conveying. Red and blue flashing lights are standard and we ...

A record-bright LFBOT exposes violent encounters between black holes and stars, helping astronomers understand extreme black ...

Red lights are for fire trucks, and blue means law enforcement. But what about green lights on a car? We have the answer.

Worcester residents may notice there's now something different on top of police cruisers in the city: Steady blue lights instead of flashing ones. The Worcester Police Department on Sunday started a ...

This composite image features X-ray, ultraviolet, optical, and near-infrared data of the luminous fast blue optical transient (LFBOT) named AT 2024wpp. The transient is the bright spot at the upper ...