Articles on Geology

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It turns out that the world is about 4,600,000,000 years old. That’s 4.6 billion years. That’s pretty old! Marcella Cheng/The Conversation

Curious Kids: How do scientists work out how old the Earth is?

The world is made of tiny building blocks called 'elements'. Scientists have worked out how fast some elements change into other elements. That gives us a very big clue about how old the Earth is.
The new map was created using data from rocks found in locations including Madagascar. Alan Collins

A map that fills a 500-million year gap in Earth’s history

You would not recognise Earth if you saw it 500 million years ago - the lands, oceans, climate and life were all very different. Scientists now have a new map of the deep history of Earth.

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