The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, confirming a theory about the formation of our solar system.

The Kuiper Belt object Altjira was thought to be a binary, but closer analysis suggests that it is highly likely to be a triple system This raises the question of the three-body problem ...

The system, which has already been named 148780 Altjira, allows scientists to improve their own models of how three gravitationally interconnected objects move in outer space. «The universe is filled ...