Top Themen

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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Conferences about Light Pollution

The  conference series ALAN (artificial Light at Night) was continued in 2016 in Cluj, Romania. The confernce was also the final conference of the "Loss of the Night Network" LoNNe, COST Action ES1204. The next ALAN conference will take place in November 2018 in Utah, USA.


The ALAN (Artificial Light at Night) conference is held for the third time in 2015 already in May in Sherbrooke, Canada.

tl_files/VDN/ALAN/Abbildungen/Greifswald landeslehrst_63_komplett.jpg
The province state teaching facility for nature conservation ans sustainable development Mecklenburg-West Pomerania is inviting to a theme afternoon about light pollution, November 26, 2014.

Schutz der Nacht_Programm_Nov 2014.jpg

Schutz der Nacht is a conference organised by  'Loss of the Night' in cooperation with the Federal Agency for Nature Conservation. The conference is in German.

In 2014 the second ALAN Artificial Light At Night  conference was hosted by Leicester De Montfort Law School, De Montfort University. It is being co-organised together with the EU COST Action LoNNe (Loss of the Night Network), which Verlust der Nacht is part of, in association with the Internationalen Dark Sky Association.

                                 LoNNe Logo   Logo IDA

A review of this event can be found here.

Two further conferences about light pollution were  organised by Verlust der Nacht in 2013:

The Bright Side of Night

ALAN Artificial Light At Night