An entire group of asteroids might have come from another star system
An article published in the journal “Monthly Notices of the Royal Astronomical Society” reports evidence of the interstellar origin of some asteroids of the centaur family and two transneptunian objects. Astronomer Fathi Namouni of the University of the Côte d’Azur in Nice, France, and his colleague Helena Morais of the Universidade Estadual Paulista, Brazil, used computer simulations to reconstruct the orbits of those asteroids backwards, concluding that they’re likely interstellar asteroids captured from another system that could have been much closer when the Sun and the stars born with it had just formed.
