Earth history
The Early Earth Wasn’t Completely Terrible
Earth formed 4.54 billion years ago. The first period of the history of the Earth was known as the Hadean…
3 weeks ago
The Moon was Pummeled Even Harder by Asteroids Than it Looks
The Moon's pitted surface tells a tale of repeated impacts over a long period of time. While Earth's active geology…
3 years ago
A Distant Asteroid Collision Gave Earthly Biodiversity An Ancient Boost
About 466 million years ago, there was an asteroid collision in the asteroid belt between Mars and Jupiter. The collision…
5 years ago