Over the years POV has featured a number of films about the environment. This collection offers educators a range of our most popular accompanying content, from lesson plans to interactive games.

Do the people who live in cities experience the same dark night that those in the country do? Check out 'The City Dark' now streaming for free and learn more about the effects of light pollution.

POV fans can now stream If a Tree Falls, My Perestroika, The City Dark, The Light in Her Eyes, and Sun Kissed for free on the POV website!

Enter our giveaway by December 14, 2012 in order to be eligible to win a DVD of 'Nostalgia for the Light,' complete with bonus features created by filmmaker Patricio Guzmán.

View incredible images from the half-finished observatory in Chile's Atacama Desert that promises unprecedented information about the early universe.

Read what critics are saying about Nostalgia for the Light, premiering tonight on PBS!

Archaeologists dig for ancient civilizations, women search for their loved ones and astronomers scan the skies for new galaxies. Premieres Thursday, October 25, 2012 on PBS.

You can watch the critically-acclaimed 'Nostalgia for the Light' starting October 19, 2012 on the PBS app for iPhone and iPad!

On Thursday, August 16, 2012, ‘Imiloa Astronomy Center of Hawai‘i hosted a screening of The City Dark in its planetarium. The film fascinated its members, who were introduced to the science of the dark and explored our relationship with the stars.

Ian Cheney's The City Dark, which premiered on POV on July 5, 2012, has prompted viewers to share their own stories about the night sky.

We love Ian Cheney's stunningly beautiful, humorous and informative film about the effects of light pollution on our bodies, minds and skies — and critics do, too.