Delhi is under a yellow alert with forecasts of light rain. The maximum temperature will be around 33 degrees Celsius. Air quality is satisfactory. Himachal Pradesh faces a red alert for heavy ...

A lodging in New South Wales has become the first to be internationally recognised as "dark-sky" accommodation, where ...

The rockets, explosions and cascading colours of fireworks are a staple of celebrations throughout the world, whether at the Fourth of July, Diwali ...

Tami Gingrich outlines the effects of light pollution on native moth populations and makes suggestions for helping them.

Planetariums were a hit with the public. Within decades, they had spread around the world – the first planetarium in the ...