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ALAN Conference Series

ALAN 5 will take place from the 12.-14. Nov. in Snowbird, Utah, US.

Night Sky Data to the People!

A new website presents citizen science data

Touring Exhibition

Our touring exhibition with 15 posters can be borrowed for events!

'Loss of the Night' App

The 'Loss of the Night' app measures sky brightness! Take part in a world-wide citizen science project that measures star visibility and light pollution. The app is free!

City Night Time Lapse

This growing collection of time lapse videos of nights in urban centres provides insights how city lights change throughout the course of the night

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Press/Media

Here, you will find press releases and media responses sorted according to up-to-dateness.

The 'Loss of the Night' App

Contribute to a world-wide citizen science project. How many stars can you count? With this App you can get involved to collect scientific data.

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Shedding light on inefficiency

Even if lightbulbs consume less electricity, we may not achieve energy savings or reductions in greenhouse gas emissions. The reason is simple: when light becomes cheaper, many users will increase illumination, and some previously unlit areas may become lit. In a recently published article in the journal “Energy & Environmental Science”, scientists from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries in Berlin (IGB) and the Museum am Schölerberg in Osnabrück, Germany have presented three policy recommendations, which they say could greatly reduce energy consumption and light pollution – without leaving cities in the dark.

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