The Giant Impact Hypothesis posits a Mars-sized planetesimal, Theia, collided with Earth approximately 4.5 billion years ago, resulting in the formation of the Moon from the ejected debris. Multiple ...

Few topics have been as contentious among both scientists and laypeople as the age of the Earth. Many scientists are people of faith, but from the moment the ancients found seashell fossils high in ...

The new dataset, published in Earth System Science Data by 16 scientists, shows a significantly cooler Earth from the late ...

It was a lot more powerful than anyone believed. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Tiny crystals in Australia are helping ...

Earth turned faster at the end of the time of the dinosaurs than it does today, rotating 372 times a year, compared to the current 365, according to a new study of fossil mollusk shells from the late ...

Millions of people around the world will pause on Tuesday, at least for a moment, to mark Earth Day. It's an annual event founded by people who hoped to stir activism to clean up and preserve a planet ...

The Earth's tail is known as the "magnetotail". Though it is generally a permanent feature, it is at the whims of the solar ...

Lunar rocks are famously dry. They contain almost none of the volatile elements that easily escape into space, such as ...