Category: Light pollution | Page 10 | DarkSky International

“The Enchanted Forest” by Lyubov Trifonova. The Moon and the northern lights lit up the snow-covered forest in Murmansk, northwestern Russia, Dec. 2014. The first winner of the 2015 International Earth & Sky Photo Contest, Beauty of Night Sky category.

Annual “Earth & Sky” Photo Contest Now Open

Light Pollution

By Guest Writer David Malin, The World at Night and “Earth and Sky” Photography Contest Judge The World at …

April 7, 2016

The City of Seattle, Washington, skyline at night with the Space Needle in the foreground.

Light Pollution Measure Passed by Washington State

Light Pollution

On Friday, March 26, Washington Gov. Jay Inslee signed a supplemental state transportation budget that includes what may well …

April 5, 2016

IDA Publishes in LED Professional magazine

Light Pollution

IDA is excited to announce the publication of our ‘special topic’ article “The Value of Dark Skies – About …

March 30, 2016

A satellite image of Las Vegas showing a sea of lights.

City Lights from Space

Light Pollution

It’s no secret that city lights are brighter than starlight. Almost everyone, from amateur stargazers to professional astronomers, has …

March 29, 2016

Little Penguins Waddling on the Dark Side

Light Pollution

By guest writer Airam Rodríguez, a postdoctoral researcher at Phillip Island Nature Parks, Australia, and Estación Biológica de Doñana …

February 23, 2016

Lessons from the retrofit revolution

Light Pollution

A recent news article draws attention to a new street lighting project just completed in downtown Philadelphia, Pennsylvania. This …

December 17, 2015

A neighborhood on a lake with tall trees reflected in the water.

City’s LED Retrofit Shows Need For Careful Lighting Choices

LEDs

By Guest Author Jim Benya Davis, California, is a small city adjacent to a large university. The city has …

December 8, 2015

A satellite image of Berlin at night showing the difference between the lights of west and east Berlin.

Night Sky Data to the People!

Light Pollution

As streetlights the world over change from sodium lamps to LED, scientists wonder what this means for night skies. …

December 8, 2015

Dark clouds with the aurora borealis lighting up the sky in gree, purple and orange over Glacier National Park in Montana, U.S.

Clouds and Aurora in a Natural Setting

Light Pollution

By Guest Author Chris Kyba Ray Stinson recently shared these beautiful images of aurora and clouds with me. They …

September 16, 2015

Help measure how the night sky is changing

Light Pollution

By Guest Author Chris Kyba On Saturday, September 12 2015, you can join thousands of people around the world …

September 11, 2015

NASA nighttime satellite photo of East and West Berlin, Germany, showing the difference in lighting.

Mapping Earth’s Night One Picture at a Time

Light Pollution

Cities at Night is a citizen science project that invites the public to help analyze nighttime images taken from …

September 9, 2015

A NASA nighttime satellite image of the City of Paris showing a lot of light pollution.

Journal Provides Free Access to its Theme Issue on Artificial Light at Night

Light Pollution

The academic journal Philosophical Transactions B is allowing free access through September to all articles published in its themed …

September 8, 2015