Nothing makes a photo more interesting than an unexpected guest appearing in the background. And how cool would it be if the ...

The green-tinged Comet Nishimura is zipping past Earth, and you have a few days to grab what could be a one-time-only chance to spot it — with a little know-how. Comet Nishimura, named after the ...

naked eye using the roof of our house to block the sun and then using a Svbony IR pass 685nm polarizing filter to increase the contrast between the background sky and the comet." Mr. Dorman also ...