Paris, France's capital, displays why it is known as the "City of Lights" in this photo taken from on board the International ...

New York City's skyline looked a little darker Saturday night without the Empire State Building's lights. Its famous tower ...

Earth Hour was marked across the world on Saturday with lights switched off in cities such as Paris, New Delhi, London, ...

The moon dims, the meteors fly, and the planets dance—these are the most exciting celestial events happening this month.

In celebration of Earth Day, Iowa City is calling on volunteers for the annual Neighborhood Energy Blitz on Saturday, April ...

Professor Nick Dunn proposes a bold vision where darkness becomes part of urban design, helping humans and other species ...

The National Oceanic and Atmospheric Administration (NOAA) forecasts the Northern Lights will be visible across several ...

New Delhi: Delhi saved 269MW as scores of residents switched off their electrical appliances and non-essential lights to observe Earth Hour on Saturday night. Several monuments and buildings ...

Iconic landmarks and city skylines around the world went dark on Saturday as millions joined Earth Hour, a global campaign by ...

The Municipality of Athens joined the initiative, switching off lights at City Hall in Kotzia Square, the Liosion and ...

Earth Hour started in 2007 as a symbolic event for climate change, inviting participants to turn off non-essential lights for one hour. The act has grown into a global movement, with over 180 ...

Earth Hour is an annual global event that promotes awareness about climate change and encourages communities to take action against environmental degradation. It originated in 2007 in Sydney, ...