The missing 500 million: Cosmic bombardment melted Earth’s first crust

The Earth is four and a half billion years old, so why they started appearing then is unknown, as is the mechanism to make ...
Earth.com

New details hint at the origin of interstellar comet 3I/ATLAS

Interstellar comet 3I/ATLAS may be older than our solar system, offering a rare glimpse into the early galaxy.

A Colossal Moon Impact May Have Left Ancient Secrets Near Future Artemis Landing Sites

Future Artemis astronauts may be able to explore rocks blasted from deep inside the Moon by an ancient giant impact.

Powerful comet shower from Oort Cloud racing towards Earth, study finds

A star passed near Earth and the Sun and jostled objects in the Oort Cloud 2.5 million years ago, sending them on a journey towards us. They are all long-period comets, meaning most of them would ...
What If on MSN

What would actually happen if Halley’s comet hit the moon?

Halley’s Comet is one of the most famous visitors in our Solar System. It is a massive, peanut shaped object made of ice, ...

Asteroid Day: 5 huge asteroid impacts that completely rewrote Earth's history. One created trillions of diamonds within seconds

June 30 is Asteroid Day, a day that marks the anniversary of the Tunguska event in 1908. A nearly 330-foot asteroid exploded over Siberia, Russia, and was  1,000 times more powerful than the Hiroshima ...