Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the ...

Ancient crystals reveal that Earth began recycling its crust and forming continents billions of years earlier than scientists ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A rare form of helium may have flooded Earth’s core during the ...

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 ...

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.