
Earth’s early magma oceans detected in 3.7 billion year-old Greenland rocks
Earth hasn’t always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planet’s first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earth’s interior. The subsequent cooling of the planet from this molten state […]