There's a billion-year gap in Earth's geological history. A new study seeks to explain the mystery.

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The Great Unconformity is a major gap in Earth's geologic record. The missing layer between Precambrian and Cambrian rocks represents a gap of around a billion years of history. Among much debate ...

Houchin and his colleagues studied dozens of zircon crystals from the Jack Hills in Western Australia. These are the oldest ...

In the 20th century, scientists began to suspect Earth was a lot older than we thought. It was our old friends/deadly foes, ...

NEW YORK — Scientists have identified what could be the oldest rocks on Earth from a rock formation in Canada. The Nuvvuagittuq Greenstone Belt has long been known for its ancient rocks — plains of ...

Deep beneath the surface of distant exoplanets known as super-Earths, oceans of molten rock may be doing something extraordinary: powering magnetic fields strong enough to shield entire planets from ...

Meteorite found in Finland reveals unprecedented phosphorus levels, one of the rarest in the solar system today ...