Today, Earth’s magnetic field acts as a safety blanket, shielding the planet from dangerous solar wind. Without the ...

In a new paper published in Nature today, colleagues and I reveal secrets of Earth’s crust 4.5 billion years ago. In the process, we also provide a new way to approach one of the biggest ...

The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun ... Elements like hafnium prefer to be mixed in with rock than with metal. Hafnium decays over about ...

Life on Earth might have started billions of years ago on land, not in the sea ... t climb this sacred site in Australia Dating back 3.5 billion years, the finding (published in the journal ...

Rodinia, in turn, is formed by the break-up of an even older supercontinent called Nuna about 1.35 billion years ago. Among ...

Earth is about 4.5 billion years old. Scientists think that by 4.3 billion years ago, Earth may have developed conditions suitable to support life. The oldest known fossils, however, are only 3.7 ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms ...