The milky way in Autumn over the roof of Battlesteads Observatory

The Big Switch Off.

The Big Switch Off of lights across Ambleside and Grasmere is happening again this year on Thursday 23rd February, from

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a 15 second exposure showing the behaviour of insects around artificial lights. Image: Nevit Dilman It is dark and there is a streetlight attracting insects to it. Because it is a long exposure you can see the trails the insects make as they travel towards and around the light.


Human Health Light pollution, especially the blue part of the spectrum of artificial light at night, is detrimental to human

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