Although it’s known for its wondrous rock formations, Grand Canyon National Park in Arizona is set claim another title. It's about to become the latest International Dark Sky Park.
An International Dark Sky Park is “a land possessing an exceptional or distinguished quality of starry nights and a nocturnal environment that is specifically protected for its scientific, natural, educational, cultural heritage, and/or public enjoyment,” according to the Phoenix, Arizona-based International Dark Sky Association (IDA).