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ALAN Conference Series

ALAN 6 will take place from 16-18.06.2020 in Lleida, Spain.

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

Dates
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Brainteaser


On this page you can find various puzzles on the topic, which you may try to your heart's delight. When you move the cursor over the puzzles they will turn yellow. To do the puzzles you can either save them to your computer or print them. You will have to double click them first to do this.



         
     
       

     
         
     
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