Imagine stepping back in time to Earth 2 billion years ago,long before forests, dinosaurs, or even fish. Step into Earth’s ...

When a meteorite with the mass of four Mount Everests hit Earth 3.2 billion years ago, it caused global chaos and provided an unexpected silver lining for life.

If you had a time machine that allowed you to cruise far into Earth’s incredible history, you’d probably want to avoid a window of time around 3.2 billion years ago.

Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the ...

When a meteorite with the mass of four Mount Everests hit Earth 3.2 billion years ago, it caused global chaos and provided an unexpected silver lining for life.

A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the ...

Geologists modeled the last billion years of Earth's ... The land mass that ... The Ma at the top of the video stands for mega-annum or 1 million years, so 1,000 Ma is 1 billion years ago.

Earth’s marine species, especially those at the tropics, were in trouble again about 419 million to 365 million years ago. This series of mass extinctions during the Devonian period eventually ...

A massive space rock, estimated to be the size of four Mount Everests, slammed into Earth more than 3 billion years ago — and the impact could have been unexpectedly beneficial for the earliest forms ...

When a meteorite with the mass of four Mount Everests hit Earth 3.2 billion years ago, it caused global chaos and provided an unexpected silver lining for life.

When a meteorite with the mass of four Mount Everests hit Earth 3.2 billion years ago, it caused global chaos and provided an unexpected silver lining for life.

(CNN) — A massive space rock, estimated to be the size of four Mount Everests, slammed into Earth more than 3 billion years ago — and the impact could have been unexpectedly beneficial for the ...