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

The haze and smoke in the atmosphere Friday made for a very vibrant sunset and will likely lead to a vibrant sunrise Saturday ...

You may have noticed this if you've ever taken off in an airplane at sunset. It might not look like anything special from the ground, just a whitish-pink sky ... red light, and if the cloud ...

The phenomenon of scattering is also why the sky turns red, orange, and pink at sunset. Crucially, you need some cloud to see this. The science is the same, with short-wavelength blue and violet ...

From the ephemeral red of a sunset to the elusive ... weather system bringing bad weather. While storm clouds generally appear dark blue or black, colours seen in thunderstorms depend on the ...

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

Indeed, there is scientific validity to the adage, "red sky at night sailors¿ delight ... east at sunrise with approaching clouds and clearing prior to sunset in the west as clouds exit to ...

Wildfire smoke as well as cirrus clouds ... and red than others though, so is it just these factors that create them? A big part has to do with the position of the sun in the sky.

An “unusual” formation of bumpy clouds was spotted over the Kent skyline glowing a vibrant red at sunset. The phenomenon ... which extend high into the sky in towers or plumes.

Far removed from raging winds and pounding rain, the cloud ... the sky and the sun dipped further beneath the horizon. The show concluded as the horizon light faded from red to black.