Earth’s night skies are lighter, thanks to towns, cities and industrial complexes. That can be bad news for astronomy … as well as birds, insects and people.
from EarthSky » Space http://ift.tt/1OuC7fZ
via IFTTT
Earth’s night skies are lighter, thanks to towns, cities and industrial complexes. That can be bad news for astronomy … as well as birds, insects and people.
from EarthSky » Space http://ift.tt/1OuC7fZ
via IFTTT
Telescopically 