The writer recalls very vividly the blue aspect of the sky as seen from the top of the San Francisco Mountains in Arizona, which have an altitude of 13,000 feet above the sea; and in an ascent of ...

Blue skies and fluffy clouds as far as Sky View 21 can see! That's what our drone captured for your Moment of Zen this month.

Earth's polar skies have shined with eerie blue-white glowing clouds slowly twisting and undulating in the twilight sky every summer since the late 19th century. These mystifying clouds are ...

Night sky photographer Ruslan Merzlyakov captured bright blue-white noctilucent clouds dancing over Nykøbing Mors in Denmark just before dawn on July 1.

Childhood dreams meet fantastical themes in the work of emerging designer Shiqi Fu, who brings a dreamy playfulness to jewellery design. A graduate of Glasgow School of Art, Fu translates an ethereal ...

Noctilucent clouds were first recorded in 1885 after a volcanic eruption on the Indonesian island of Krakatau, which sent a massive ash cloud into the upper atmosphere that circled Earth for months.