The solar system's earliest asteroids may have all been massive
A new analysis offers new clues to how planetary building blocks form
By
Maria Temming
2:00pm, August 3, 2017
The solar system’s first asteroids were probably born big.
Rather than slowly amassing bulk over time, the original members of the asteroid belt rapidly formed into rocks hundreds of kilometers across, researchers propose. This finding, reported online August 3 in Science, may help resolve a long-standing debate over the origins of planetesimals — the giant space rocks that populated the asteroid belt and constructed the planets.
https://www.sciencenews.org/article/solar-systems-earliest-asteroids-may-have-all-been-massive
