To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

"We're studying the leftover raw materials from the formation of the planets and trying to understand the history that made ...

The Earth started as a mixture of gas and dust around the Sun and grew as it collided with asteroids and dust particles.