Animation : Borrowed light, by Olivia Huynh
The previous nights were the occasion to see the Perseid meteor shower. It was also the Nuits des Etoiles in France, where hundreds of events are organized to allow people to watch stars and...
The previous nights were the occasion to see the Perseid meteor shower. It was also the Nuits des Etoiles in France, where hundreds of events are organized to allow people to watch stars and...
You may perhaps remember the not so distant time when I was posting astrophotography pictures on this very website. I have also wrote a few times on how we are lighting up our cities...
Here is another post I wrote for Cleantechies, this time on energy conservation : ” Even after the election of François Hollande as President of France, an energy conservation measure of the previous government...
Too many lights in our cities at night is really bad for our economy as we waste electricity and thus money. It is also a bad idea for nocturnal animals, plants and amateur astronomers...
I already wrote a few articles on dark skies and light pollution. It seems the phenomenon is even worse as one can see with the image on left (courtesy of Stellarium, a great astronomy...
The city of Barcelona and Spanish utility Endesa have been installing smart LED lightning systems that automatically switch themselves off when no one is around. This enables the city to cut by 30 percent...
Earth Hour was a tremendous success as many people participated. Cities turned down the lights of their monuments and the pictures of the event are amazing and totally illustrate how much energy and money...
Light pollution is a major problem for astronomers in most if not all countries (see map) . But for the International Year of Astronomy this may change with the following initiative. Globe at Night...
This week-end was held in Slovenia the seventh European Symposium for the protection of the night sky. This is the occasion to have a look at the lightning of our cities at night. As...