The first day of fall arrives on Sunday with the autumn equinox, starting shorter, colder days because of Earth's axis and ...

The results, which the researchers call PhanDA, estimate global temperatures over the last 485 million years, going back to ...

I f astronomers had been walking the Earth 466 million years ago, they may have had something special to see. The moon and ...

We know Mars once had an active geological past, filled with water, volcanic activity, and dynamic geological changes. Now, ...

The ring would have gradually fallen to Earth as meteorites, correlating to a spike of impacts seen in the geological record.

Some of the most dramatic climate events in history are the Snowball Earth episodes, which occurred hundreds of millions of ...

Earth and Saturn might be a lot more similar than previously thought. In a new study, a team of researchers suggests that 466 ...

A recently discovered asteroid will soon become a quasi-satellite of Earth as it loops around our planet over the next two ...

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...

To reach that surprisingly conclusion, scientists studied the positions of 21 asteroid impact craters during the Ordovician period – the second of six periods in the ...

Evidence suggests Earth had a ring system 466 million years ago, causing a surge in meteorite impacts and possibly ...

A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...