A team of international scientists might have just identified where a billion years of missing history might have gone ...

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

One fifth of the world’s oil and liquefied natural gas shipments typically pass through the narrow Strait of Hormuz on their ...

A continental collision trapped oil within what is today Iran. The same collision explains why that oil is trapped behind the Strait of Hormuz now ...

A potential new mineral on Mars forms when iron sulfates are heated above 100°C. Data from Valles Marineris regions suggest ...

Explore stunning cave hikes in Illinois with towering sandstone cliffs, hidden rock shelters, and dramatic natural arches waiting along scenic forest trails.

In 1869, John Wesley Powell was studying layers of rock in the Grand Canyon when he noticed an unconformity in the layers. Around a billion years were missing, and the problem turned out to be global.

The “gravity hole” formed at least 70 million years ago after convection in Earth’s mantle. The weak gravity could impact our ...

In this age of Mars rovers, questions about the planet's ancient past have shifted. A growing body of evidence supports the ...

A layer of rock just 520 million years old sat directly on top of ancient rock dating back 1.4 to 1.8 billion years.

The Great Unconformity is a major gap in Earth's geologic record. The missing layer between Precambrian and Cambrian rocks ...