For those in midlatitudes of the Northern Hemisphere, the arc of our galaxy becomes easier to see in May. Here's when and ...

Air pollution isn't always visible, but it's definitely real. To help us gain a better understanding ... Sign up for Mashable's weekly Light Speed newsletter. You can use the map to choose the ...

Sadly, 60% of the world's population has already lost access to the night sky thanks to light pollution. Across Europe and the U.S., that number climbs to nearer 80%. A team of researchers wants ...

New map shows more than 500 facilities that emit toxic or hazardous air pollution and that could apply for Presidential ...

It's being looked at in highly developed areas like the UK and USA, but the driver to reduce light pollution isn't coming from the need to protect wildlife, it's more about energy efficiency and ...