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

Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator ...

The clip posted by @verivanessa shows a large cloud at sunrise appearing to sit just above the horizon, with a long, dark rectangular beam stretching across an orange-pink sky. A note overlaid on ...

The Sky News weather team explained that nacreous or polar stratospheric clouds are relatively ... sunrise and after sunset when the sun is just below the horizon. The pastel-rainbow colours ...

The quintuple-feature starred a towering thunderhead, menacing shelf cloud, vibrant rainbow, glorious sunset and concluded with a fireball that shot across the night sky. The show began with a ...

ABOUT sunset on the evening of Sunday ... which I will briefly describe. Two large clouds, covering a considerable portion of the western sky, and separated by an interval leading generally ...