Earth formed around 4.54 billion years ago. Knowing how old Earth is can be more difficult to confirm because Earth's age is not only based on the age of rocks, but also the isotopic estimates of what ...

New research sheds light on the earliest days of the earth's formation and potentially calls into question some earlier assumptions in planetary science about the early years of rocky planets.

The theory could have important implications for the search for life outside the solar system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Scientists have shown that Earth’s basic chemistry solidified within just three million years of the Solar System’s formation. Initially, the planet was barren and inhospitable, missing water and ...

Sara Novak is a science journalist and contributing writer for Discover Magazine, who covers new scientific research on the climate, mental health, and paleontology. View Full Profile. Earth formed ...