WASHINGTON — Ice-covered Greenland really was green a half-million or so years ago, covered with forests in a climate much like that of Sweden and eastern Canada today. An international team of ...

A new study of ancient dog DNA shows that people and dogs traveled together across Eurasia for at least 10,000 years.

A woolly mammoth that lived and died nearly 40,000 years ago has given us a spectacular scientific first, millennia later.

A large region of unusually hot rock deep beneath the Appalachian Mountains in the United States could be linked to Greenland and North America splitting apart 80 million years ago, according to new ...

Every day, massive chunks of ancient ice the size of skyscrapers crash into the Arctic Ocean from Greenland's coastline. The ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites ...