1.2 billion years ago, a 1-km asteroid smashed into Scotland

New research by a team of UK scientists has located the site of the massive impact that took place in Scotland 1.2 billion years ago. Roughly one billion years ago, Earth experienced a higher rate of meteorite impact than it does today.

NASA Study Reproduces Origins of Life on Ocean Floor

A team of scientists has re-created some of the first steps of life in the lab, testing whether life could emerge on other ocean worlds.

Multicellular Life Began 1.5 Billion Years Earlier than Thought

The preservation of trace fossils, suggests that multicellular organisms that could move around to reach food resources may already have existed 2.1 billion years ago, more than 1.5 billion years older than previously thought.

Earth's Oldest Rock Found on the Moon

An international team of scientists found evidence that the rock was launched from Earth by a large impacting asteroid or comet. The impact sent material into space, where it collided with the surface of the Moon 4 bil years ago.

Oxygen could have been available to life as early as 3.5 billion years ago

Microbes could have performed oxygen-producing photosynthesis at least one billion years earlier in the history of the Earth than previously thought.

Massive impact crater discovered in Greenland

An international team has discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the northern Greenland. This is the first time that a crater of any size has been found under one of Earth.

Lost Continents Hiding Under Antarctica

Antarctica was once part of the supercontinent Gondwana, which began to disintegrate some 130 million years ago, although the bond between Antarctica and Australia held together as recently as 55 million years ago.

Archaeology fossil teeth discovery in Germany could re-write human history

A 9.7-million-year-old discovery has left a team of German scientists scratching their heads. The teeth seem to belong to a species only known to have appeared in Africa several million years later.

Life on Earth May Have Started With a Cosmic Splash

Could the building blocks for life on Earth have been delivered by meteorites crashing into ponds of water 4 billion years ago?

New evidence would push life back to at least 3.95 billion years ago

The researchers argue they have uncovered evidence that there was life on Earth more than 3.95 billion years ago—on a planet that isn’t much more than 4.5 billion years old itself.

Oldest evidence of life on land found in 3.48 billion-year-old Australian rocks

Fossils discovered in ancient hot spring deposits in the Pilbara have pushed back by 580 million years the earliest known evidence for microbial life on land.

New discovery shatters previous beliefs about Earth's origin

A new study proves that the Earth and other planetary objects formed in the early years of the Solar System share similar chemical origins – a finding at odds with accepted wisdom held by scientists for decades.

Life on Earth Emerged Millions of Years Earlier Than We Thought

Researchers working in Greenland have found traces of microbial life in our planet's most ancient rocks. The discovery pushes back the oldest evidence of life on Earth by about 220 million years, showing just how habitable our planet was during its earliest stages.

New study zeros in on plate tectonics' start date: Analysis of trace elements places the onset of plate tectonics about 3 billion years ago

A new study suggests that plate tectonics -- the dynamic processes that formed Earth's mountains, volcanoes and continents -- began about 3 billion years ago. By analyzing trace element ratios that correlate to magnesium content in ancient Earth's crust, the researchers provide first-order geochemical evidence for when plate tectonics first got underway.