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 ...

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 ...