For Palo Alto's conservationists, the adoption of a "dark sky" law is a bright idea that is long overdue. But as the City ...

February offers spectacular astrophotography opportunities, from stunning planetary alignments to bright ... on its dark side ...

A new study is helping scientists clarify how clouds can affect climate, while also dimming the prospects for some proposed ...

Light pollution—the needless shining of bright lights into the night sky ... there are solutions that save money and preserve the dark night sky. The most important step is to shield outdoor ...

As a cloud comes out from behind the dark clouds into a bright blue sky, it is edged with a silvery lining. Thus we are moving from relative darkness into bright light and the meaning of the idiom ...