Noctilucent clouds, Earth's highest clouds, shine blue in the twilight sky from late May to August in the northern hemisphere ...

ABOUT sunset on the evening of Sunday, July 13, being at Ripon with my son, our attention was arrested by an unusual appearance, which I will briefly describe. Two large clouds, covering a ...

When the birds attempt landing, they perform aerial ballets and formations to ... known as murmurations, block the view to the sky and the phenomenon is therefore called "Black Sun." ...

Vibrant yet delicate hues of orange painted the sky, a thin veil of cloud cover soaking up the fiery tones. The dazzling sunset was also our earliest sunset of the year — arriving at 4:46 p.m ...