collided with Earth about 4.5 billions years ago. This is how old Earth was 100 million years ago, a time when the planet was ...
Discover how life on Earth evolved from muted tones to vibrant colours, and how scientists are uncovering the secrets of ...
Could our solar system have been temporarily exposed to an enhanced flux of cosmic-rays at some point in the ancient past?
Researchers have proposed that Earth may have had a ring system 466 million years ago, during a period of intense meteorite bombardment known as the Ordovician impact spike. This finding ...
A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.
Near-Earth asteroid Bennu has a slim chance of colliding with Earth in 2182. If it does, the impact could trigger a global ...