Snow is made up of trillions of tiny ice crystals to make snowflakes, with not one alike. Here's how they form.

The solar system as we know it began life as a vast, swirling cloud of gas and dust, twisting through the universe without direction or form. About 4.6 billion years ago, this gigantic cloud was ...

Also called molecular clouds, they can be massive, spanning hundreds of light-years and forming thousands of stars. The post ...

How do clouds form? · What created the Grand Canyon? · What causes sunburn? Speaking of clouds, Chris and Cassy will prove how fun science can be as they try out an easy-to-do experiment called ...

How are stars born, and has it always been this way?Stars form in regions of space known as stellar nurseries, where high ...

When the solar system formed, rocks (and other dense, heavy materials in the dust cloud such as iron and uranium) tended to gather closer to the Sun, and these materials combined together to form ...

The launch was a complete success, but it left behind a strange, colorful, and oddly-shaped plume hanging in the sky - a departure from the typical narrow, cylindrical cloud left behind by other ...