Seán Jordan does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Billions of years ago, Earth was an uninhabitable rock covered in magma. Scientists are still working to decipher the tale of how it transformed into a blue and green orb teeming with life. However, ...

How did life begin on Earth? While scientists have theories, they don't yet fully understand the precise chemical steps that led to biology, or when the first primitive life forms appeared. But what ...

Sixty-six million years ago, this asteroid crashed into Earth and wiped out most of the life on our planet. Including the biggest, baddest things that ever roamed the planet. Yeah, dinosaurs. If a ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

An artist's impression of the collision between the early Earth and Theia, which may have formed the moon MPS / Mark A. Garlick Around 4.5 billion years ago, a planet called Theia is thought to have ...

Portions of the moon-forming impactor Theia survived throughout Earth’s history in the deep mantle while others went on to form the Moon. Credit: CNN World. About 4.5 billion years ago, Earth had a ...

About 4.5 billion years ago, a world the size of Mars crashed into Earth and scattered debris that became the Moon. New measurements of subtle chemical fingerprints in ancient rocks now tie that lost ...

Strange structures at Earth’s core–mantle boundary may be relics of early core–mantle mixing, revealing new clues about how our planet formed, cooled, and ultimately became uniquely habitable. Credit: ...