Parts of Alberta witnessed a spectacle early Friday morning as rare noctilucent clouds, also known as night-shining clouds, ...

A Met Office video explains seven rare cloud types - including noctilucent clouds as they’re sighted in the UK.

A Met Office video explains seven rare cloud types - including noctilucent clouds as they’re sighted in Edinburgh.

Their Latin name means "night shining" and the clouds usually appear as streaks of blue or silver. The Met Office describes ...

Was it a cosmic jellyfish, a fleeting light trick, or something more outlandish? When NASA astronaut Nichole Ayers took a ...

This extraordinary event is known as a sprite — or “farfadet” in French — one of the rarest forms of Transient Luminous ...

It's a "transient luminous event" or TLE that happens above the clouds, in the mesosphere, when there is intense electrical ...

Early Tuesday morning, a delicate, wispy cloud type rarely seen formed over western Montana, lighting up the pre-dawn sky.

Solar flares can reshape exoplanet atmospheres within days, affecting temperature, winds, and potential habitability.

The mesosphere, the layer of sparse air above the stratosphere that reaches nearly to the edge of space, is very much a complete unknown.

University of Pennsylvania’s Igor Bargatin imagines tiny levitating vehicles that could be used for the extensive study of the mesosphere ...