They’re red, they’re reasonably big, and they have no business being in the main asteroid belt, but their discovery confirms the complex conditions in place when the solar system was still forming.

The space rocks may have come from beyond Neptune, and potentially offer hints at the chaos of the early solar system. By Jonathan O’Callaghan Two red things are hiding in a part of the solar system ...

Scientists have found two huge, red objects in the asteroid belt that they believe are not supposed to be there – both of which have “complex organic matter” on their surfaces. These two asteroids, ...