Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.

Researchers have found that stars in the early universe may have formed from 'fluffy' molecular clouds. Using the ALMA telescope to observe the Small Magellanic Cloud -- whose environment is similar ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

A breathtaking new image of the RCW 38 star cluster showcases a cosmic nursery bursting with color, light, and energy.

The cloud cover isn't what it used to be, and scientists say it is helping fuel Earth's hottest temperatures on record.

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

The industry's top leaders, including The Most Influential Women in Payments, will be on hand to discuss innovation, ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...