A lot of the rocks we have on Earth are pretty old, but none of them were around when our planet was first formed. The Earth itself is around 4.5 billion years old, and the oldest rocks we’ve ...

When the Apollo 14 astronauts returned samples from the moon’s surface, they probably didn’t realize that they were reuniting Earth with a bit of its early history.

The oldest rocks on Earth formed more than 3 billion years ago, and are found in the cores of most modern continents. However, geologists still cannot agree on how or why they formed.

In 2016, a remarkable discovery took place deep beneath the surface of a Canadian mine, where Professor Barbara Sherwood ...

Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks.

The scientists found that one rock contained a 0.08-ounce (2 grams) fragment composed of quartz, feldspar and zircon, all of which are rare on the moon but common here on Earth.

OLD BUT NOT CRUSTY These banded rocks found along the eastern shore of Canada’s Hudson Bay are estimated to be 4.28 billion years old, making them Earth’s oldest intact rocks. (Hammer shown ...

The oldest rocks on Earth are especially helpful for scientists, as they contain Hadean minerals, which are minerals from Earth's first geological eon. This particular eon spans from the formation ...

They sawed out a chunk of 3.7-billion-year-old rock and took it back to Australia to study. In it they found the purported stromatolites, along with other clues to ancient life.

A 2.35-billion-year-old Moon rock that fell to Earth in Africa is rewriting what we know about lunar volcanism. This rare meteorite, studied by UK scientists and unveiled at a major geochemistry ...

Scientists have discovered a new type of sedimentary rock made of debris from slag heaps, formed in the geological blink of ...