The Earth formed over 4.6 billion years ago out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other ...

Earth is the third planet from the sun and the only planet in the known universe, with proof of life. So, when and how did the Earth form? Let’s find out.

How do scientists know how old Earth is? Learn how experts have measured Earth's age, and why it is more difficult to pinpoint an exact date.

Earth and Mars must have formed from collisions between giant moon-sized rocks rather than from clumping together of a huge amount of tiny pebbles, a new study found.

A new set of observations from the James Webb space telescope could help scientists learn more about how Earth formed millions of years ago.

However, this new work indicates that the Earth needs to have formed from a more S-poor source; in terms of the geochemistry, the best candidate for this material is the metal rich CH chondrites ...

Collisions with tiny planets and large moons would have flung material away from Earth but also helped grow the planet. For hundreds of millions of years after the moon formed, Earth was bombarded ...

New geochemical research indicates that existing theories of the formation of the Earth may be mistaken.

Experiments on samples of iron and rock held at immense pressures have led to new ideas of how Earth's core formed.

A new study shows RNA can link to amino acids in water, revealing a simple reaction that may explain how life’s first proteins began.