Photographer Justin Ng (Facebook.com/justinngphoto) captured the cones of Mount Bromo, Mount Semeru and Mount Batok during sunset and into the night.CREDIT: Justin Ng (Facebook.com/justinngphoto)
It's International Dark Sky Week, an event designed to raise awareness about the negative, star-dulling effects of light pollution.
Less than a third of the global population lives under naturally starlit and moonlit skies, according to the campaign's organizer, the International Dark-Sky Association (IDA). Light pollution not only deprives people of a wondrous view of the cosmos — it can have serious health and environmental consequences, too. Besides wasting energy, pervasive artificial lighting can send confused migratory birds crashing into walls and disorient baby sea turtles on their vital post-hatching trek to the ocean.