This is about four times higher than the highest clouds we normally see, the wispy cirrus clouds. Because the air is so thin in this part of the atmosphere, it needs to be much colder than 32°F ...

On sunny days like this, a cloud full of ice-lollies sounds like the ultimate treat and researchers from the University of Manchester have discovered such clouds, twice. The researchers, led by ...

Scientists find clouds full of 'ice-lollies' Researchers reveal the bizarre concentration of cool cloud-clinging confections as the UK experiences a heatwave. Tuesday 20 June 2017 19:27, UK.

Blue ‘noctilucent’ clouds are appearing further south than ever seen before – and pollution may be a cause Published: July 3, 2019 7:00am EDT. Jon Perrett, University of Bath.

The clouds, known as “noctilucent clouds” or NLCs, glow blue at night because tiny ice crystals 50 miles (80 km) above the earth are reflecting sunlight from the other side of the planet ...

The new images, from NASA's PMC Turbo mission, show the "brilliant blue" rippling clouds in incredible detail. PMCs appear about 50 miles above the poles during summer.

Scientists find clouds full of 'ice-lollies' Researchers reveal the bizarre concentration of cool cloud-clinging confections as the UK experiences a heatwave. Tuesday 20 June 2017 19:27, UK.