Though the 22-degree halo is the most common, it is just one of several atmospheric optical effects—others include sun ...

We haven’t figured out exactly what gives them their shape, determines altitude – or makes them rain when they do. But ...

The UK could soon conduct experiments to dim sunlight, even though geoengineering projects seeking to change the climate ...

Other efforts to cool the planet are underway, including a trial program to vacuum carbon dioxide out of the air with huge ...

On a tranquil summer evening, just as the sun dips below the horizon and darkness begins to settle, an ethereal spectacle ...

In an unprecedented move, the UK government is set to give the green light to experiments aimed at diming the Sun as a ...

To his puzzlement, the instruments detected surprisingly high ... clouds will slow or accelerate global warming. Anderson decided to tackle one piece of that puzzle: the formation of cirrus ...

Avtech proFLIGHT This app is a high ... and more. Cloud Topper This is the digital replacement to your old sight level. Using your device’s camera, gyroscope and accelerometer, it’ll help you ...

Curious about whether the clouds you see mean sunny skies, roaring storms or a stunning sunset? Here’s your guide to the ...