The disputed champion, Minnesota’s Morton Gneiss, contains zircons dating to 2.6 billion, 3.3 billion and 3.5 billion years ago ... about how we reconstruct Earth’s history.

“You could pull up Google Earth images of places like Utah ... Most scientists today agree that at least some water existed on the surface of Mars during the Noachian epoch, roughly 4.1 to 3.7 billion ...

Scientists have since worked hard to pinpoint how fast the Universe is expanding, and how long ago the ... three billion to four billion years old. Earth couldn’t have existed longer than ...

Hansen and his colleagues also estimate that there will be a temperature rise of 0.2-0.3 °C per decade in the ... 1,29,000 to 1,16,000 years ago. Paleoclimatic evidence shows that in this period, ...

Its genomic complexity, the authors argue, suggests that LUCA was one of many lineages — the rest now extinct — living about 4.2 billion years ago, a turbulent time relatively early in Earth’s history ...

Roughly 3.26 billion years ago, Earth had a “what doesn’t kill you makes you stronger” moment. A monster meteor dubbed “S2”—roughly the size of four Mount Everests and up to 200 times ...

According to the study authors, a collision between the Congo and São Francisco cratons — ancient continents that existed more than 2 billion years ago ... we see on Earth today," Chi ...

By studying some of these vestiges, geologists have been able to detect what was transpiring under the Earth’s crust over 2.5 billion years ago. Below our feet—and our planet’s outer crust ...

Scientists have identified three definitive supercontinents in Earth's history and ... called Columbia, or Nuna, existed from around 1.7 billion years ago to 1.45 billion years ago in the ...

The Great Oxygenation Event, which occurred around 2.4 billion years ago, was one of ... which didn’t exist yet, something similar was going on in early Earth. As continents grew, so did the ...