First, what is an ice age? It’s when the Earth has cold temperatures for a long time – millions to tens of millions of years – that lead to ice sheets and glaciers covering large areas of its surface.

If you've seen any of the "Ice Age" animated Disney movies, we have some bad news: You don't know the real ice age. For the first time since 1972, NASA is putting science experiments on the moon in ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Earth has experienced several climate cycles throughout its long history, including several ice ages that caused the planet to freeze over. The last ice age occurred approximately 11,700 years ago, ...

Explore 25 Major Events in Earth's 4.5 Billion Year History. Discover pivotal moments from its formation to the rise of life.

Ancient volcanoes in the Arctic may have trapped Earth in repeated "Snowball Earth" freezes for 56 million years.

Tiny crystals hidden inside an ancient bone forced scientists to redraw the timeline of a famous Homo juluensis tool site.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. How many ice ages has the Earth had, and could ...