According to the Tribhuvan International Airport (TIA) office, some international flights have also been delayed. The ...

A major study links long-term air pollution, especially sulfur dioxide, to higher depression risk, urging stronger pollution ...

A thick, grey smog has blanketed Kathmandu Valley and much of Nepal, turning the air acrid and the sky an unnatural shade of ...

For Palo Alto's conservationists, the adoption of a "dark sky" law is a bright idea that is long overdue. But as the City ...

A proposed ordinance in Palo Alto looks to lessen the amount of light pollution in the city at night by implementing new regulations on outdoor lighting.

Ultrafast electron imaging reveals never-before-seen nuclear motions in hydrocarbon molecules triggered by light. The ...

For Palo Alto’s conservationists, the adoption of a “dark sky” law is a bright idea that is long overdue. The laudable goal is to protect wildlife and humans from light pollution and to ...