We know Earth is old. Scientists estimate that our planet formed around 4.5 billion years ago. But how old is it exactly? And ...

Previous studies established that the Barney Creek rocks, which are more than 1 billion years old, contain traces of ... early eukaryotes were adapted to a world very different from modern Earth.

(That old salsa jar at the back of your fridge ... into one another as continental plates shifted, thickening the rock into the world’s oldest continental crust. Disko Island is home to three ...

Geologists recently dated the age of Watersmeet gneiss, a type of rock in the Upper Peninsula, as the oldest in the U.S. Here ...

In 2016, a series of unassuming stone shapes rocked the paleobiology world when they were declared ... preserved in the 3.7-billion-year-old rocks. It was these conical shapes, however, that ...

Microfossils found around the world contain specimens that don’t ... As their name suggests, these ancient rocks contain the tiny fossilized remains of protists and bacteria, and when University ...

Archaeologists have discovered a panel containing the only known example of spider rock art in Egypt and, it appears, the entire Old World. The rock panel, now in two pieces, was found on the west ...

In a recent study, geologists say Michigan is home to the oldest known rock in the nation. Watersmeet gneiss is found in Michigan's Upper Peninsula. Minnesota's Morton gneiss previously held the ...