Stargazers in parts of Europe were stunned by an unusual sight on Monday evening: a large, glowing blue spiral in the sky.

Have you ever wondered how a cloud stays in the sky? In a recent conversation with my friend and colleague Alan Sealls, the AMS President-Elect told me that he pondered this very question ...

As a cloud comes out from behind the dark clouds into a bright blue sky, it is edged with a silvery lining. Thus we are moving from relative darkness into bright light and the meaning of the idiom ...

This satellite picture shows the Cirrus Radiatus clouds and the blue arrows show direction of jet stream A fan of pink and yellow streaks decorate the blue sky over a frosty field in Coulsdon ...

Each scene is made more intense by lasting only moments. Smilde's creations in gallery spaces include a sky-grazing cloud at the De Groen Fine Art Collection in Arnhem, the Netherlands.

How to see the lunar eclipse The so-called blood moon will be visible for about an hour starting at 2:26 a.m. Eastern on Friday morning. Peak viewing will be close to 3 a.m. Eastern. To see it ...