Add Yahoo as a preferred source to see more of our stories on Google. Bright multi-colored clouds shining in the night sky above Mount Jökultindur in Iceland on Jan. 25. Bright multi-colored clouds ...

These noctilucent clouds, reflecting light from the sun after sunset, have been visible in Martian skies for the past four fall seasons. Credit: NASA / JPL-Caltech / MSSS A rover got a new view of ...

A spectacular movement of rainbow-colored clouds has been spotted in the skies above Scotland. The rare view was captured near Nairn Beach on Christmas Eve, shortly after sunrise around 9 a.m. local ...

Arctic observers got a rare festive treat when rainbow-colored clouds appeared in the skies. So-called polar stratospheric clouds were seen over Norway, Sweden, Finland, Alaska, and Scotland. Some saw ...

On June 29 at Wallop’s Flight Facility in Virginia, NASA launched a rocket into the Earth’s ionosphere. The goal was to make brightly colored clouds and watch them as they moved around in the air ...

Bright multi-colored clouds shining in the night sky above Mount Jökultindur in Iceland on Jan. 25. The dark skies in the Arctic Circle recently shone with ethereal multi-colored light. But this ...