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Be a citizen-scientist: measure the darkness of a total solar eclipsed sky!

Be a citizen-scientist: measure the darkness of a total solar eclipsed sky! Thumbnail

If you are on or near the centerline of the path of totality during the solar eclipse on August 21, 2017, you are able to participate in an activity to observe and record the faintest stars visible as a… Read More

Lights at Night Turn Nocturnal Pollinators Off

Lights at Night Turn Nocturnal Pollinators Off Thumbnail

Pollination is essential for the reproduction of many plant species. Some flowering plants rely on the wind or water to spread their pollen, but most depend on animals for pollination. Insects like bees, moths, and… Read More

Like moths to a flame: National Moth Week, and how you can help our nighttime wildlife

Like moths to a flame: National Moth Week, and how you can help our nighttime wildlife Thumbnail

Next week, as night falls, people across the USA and around the world will be found huddled in groups, waiting, staring into bright light sources. This is not some strange cult or ritual; in fact… Read More

The Psychology of Dark Skies

An aerial photo of Sark, Channel Islands.

By Guest Writer Ada Blair I’ve been a regular visitor to the Isle of Sark since 2010 when a close friend of mine moved there. Sark, at only 5.5 square kilometres, is the smallest of the… Read More

Grad Student Helps Acadia with Dark Sky Bid

Three people sit looking over the water at Acadia National Park. The night sky is filled with star and you can see a hint of he Milky Way.

Guest post by Locher Grove It’s not easy to find dark skies along the East Coast of the continental United States.  Development and expansion have increased light pollution along the seaboard, disrupting ecosystems and stargazing. … Read More

What Do Dark Skies Mean to You?

What Do Dark Skies Mean to You? Thumbnail

Guest Post by Emma Marrington, senior rural policy campaigner for Campaign to Protect Rural England (CPRE) When was the last time you experienced a truly dark, star-filled night sky, even in the countryside? Or saw the… Read More

Three Surprising Creatures Affected by Light Pollution

Three Surprising Creatures Affected by Light Pollution Thumbnail

Every year we see lots of new research on the effect of artificial light at night on various types of wildlife. Many of us know of the impact of light pollution on wildlife such as… Read More

AMA Report Affirms Human Health Impacts from LEDs

This photo shows the divide between East and West Berlin that is still visible at night from space. On the left are the gas lamps of the West and on the right, the orange high-pressure sodium lamps of the East, with a stark contrast between them. The image is a powerful reminder that lighting choices made by city planners are long lasting.

A groundbreaking report recently released by the American Medical Association (AMA) Council on Science and Public Health affirms known and suspected impacts to human health and the environment caused by light emitting diodes (LEDs) that… Read More

80% of World Population Lives Under Skyglow, New Study Finds

World map of artificial sky brightness. Image from the new "World Atlas of Artificial Night Sky Brightness."

A groundbreaking new study documenting light pollution across the globe finds that more than 80 percent of the world’s population lives under light polluted skies. The United States and Europe have it even worse, with… Read More

Little Penguins Waddling on the Dark Side

Little Penguins Waddling on the Dark Side Thumbnail

By guest writer Airam Rodríguez, a postdoctoral researcher at Phillip Island Nature Parks, Australia, and Estación Biológica de Doñana CSIC, Spain Visible light on Earth largely comes from the sun and varies daily, even at night… Read More