but the noctilucent clouds, composed of water-ice, hover some 50 miles above the planet's surface in a layer of the atmosphere known as the mesosphere. They were still largely a mystery to ...

There are five major areas to our research. Noctilucent cloud in the summer polar mesosphere. The largest research project is the development and launch of rocket-borne probes to detect the dust in ...

Noctilucent, or "night-shining", clouds can be seen on Mars, just as they are on Earth. Nasa's Curiosity Mars rover imaged these high-altitude clouds on 17 May, 2019, using its navigation cameras.