Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature ...

Another telltale hint that Earth's continents were all one land mass comes from the geologic ... States and Europe reveal that parts of the ancient supercontinent near the equator must have ...

"Ancient Earth was nothing like our current home," explains Shungo Koyama (Tohoku University), "It was a much more hostile place; rich in metallic iron with an atmosphere containing hydrogen and ...

In short, how Earth's ancient magnetic field was generated remains ... where it was protected from harmful radiation, and ...

The study is published in Astrobiology. "Ancient Earth was nothing like our current home," explains Shungo Koyama from Tohoku University, "It was a much more hostile place; rich in metallic iron ...

geologists use to better understand the environmental conditions in which truly ancient earth life may have first formed. For decades, we have wondered whether Mars, Venus and the icy moons of ...

This model reveals how vastly different the atmosphere was on ancient Earth, and how life may have first emerged. The key to unlocking the secrets of distant planets starts right here on Earth.