Most of Pellegrini’s images are captured out of his backyard in Lemont. He also made the pilgrimage to the annual Nebraska Star Party near Valentine, Nebraska, for the renowned dark skies there.

Federal actions like the 1970 Clean Air Act and the 1972 Clean Water Act helped regulate water and air pollution.

Starry Skies North formed a few years when dark sky advocates in the Twin Ports and the Twin Cities decided to join forces in the long but often little-known battle to reduce light pollution ...

What to know about light pollution and Texas’ dark skies Light pollution costs Americans an estimated $2.2 billion a year nationwide, because it wastes energy, says the International Dark-Sky ...

International Dark Sky Week is a worldwide night celebration to build awareness about the harmful effects of light pollution and the importance of the global nighttime environment. To learn more ...