Light pollution filters won't break the bank either, with some costing less than $50. They can cancel out skyglow, city lights and other unwanted factors, making sure your images retain their ...

The International Astronomical Union defines light pollution as “artificial light ... since they periodically photobomb long-exposure images, appearing as streaks of light.

By combining ‘digital light painting’ with air pollution sensors, researchers and artists have found a way to make the invisible visible. Their photos highlight the health risks of particulate ...