early solar system

Discovery of a space 'monster' that almost knocked the Earth off its feet
The chilling discovery of a huge amount of radioactive aluminium hitting the Solar System 4.6 billion years ago suggests the baby Earth had a narrow escape.
An ancient object than the Earth fell into the Sahara, revealing the secret of 'earthquake'
Our oldest homeland may be a snow circle - the beautiful water around the young sun, which provides materials to shape the earth and its neighbors.