Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name “Hadean” comes from the ...

But finding geological evidence of the extent of Earth's life (that is, locating rocks that formed with Earth, not on it) is ...

If shown to be Hadean in origin, the NGB would represent the oldest preserved rock sequence on Earth. It would offer critical insights into early Earth geology, including the potential setting for ...

Hadean Eon made Earth a planet, but it wasn’t ready for life yet The Hadean eon marked the violent and chaotic birth of Earth, around 4.6 billion years ago, with intense heat and volcanic activity.

The Hadean ran from Earth's formation roughly 4.5 billion years ago until 4.03 billion years ago. Early during this eon, a huge collision occurred that is believed to have resulted in the ...

The Hadean ran from Earth's formation roughly 4.5 billion years ago until 4.03 billion years ago. Early during this eon, a huge collision occurred that is believed to have resulted in the formation of ...

On a remote rocky outcropping in northern Canada, scientists have found further confirmation that the area hosts some of the world’s oldest rocks (Science 2025, DOI: 10.1126/science.ads8461 ...

This supports the idea that the surrounding rock formed well within the Hadean Aeon, which would make it the only known remnant of Earth’s early crust.

These rocks are unambiguously dated at 4.03 billion years old, marking the boundary between the Hadean Eon and the next chapter in Earth’s history: the Archean.

This discovery sheds light on a little-known period: the Hadean, a tumultuous era when Earth resembled a volcanic hell. The Nuvvuagittuq rocks, preserved despite geological upheavals, offer a unique ...

Earth was a ball of molten lava when it first formed about 4.5 billion years ago. Scientists originally believed that Earth’s first eon–the Hadean–ended when the first rocks formed.

These rocks are unambiguously dated at 4.03 billion years old, marking the boundary between the Hadean Eon and the next chapter in Earth’s history: the Archean.