Researchers in Vienna found three fireplaces from the coldest period of the Ice Age, also the most mysterious.

Previous analysis indicates that Earth endured a roughly 200–300 year long ice age starting around 540 ... spanned three billion years of geologic history that trace specifically back to Greenland.

The cold periods - or ice ages - are times when the entire Earth experiences notably colder climatic conditions. During an ice age, the polar regions are cold, there are large differences in ...

Whether for cooking, heating, as a light source or for making tools—it is assumed that fire was essential for the survival of ...