This is an image of stellar nursery NGC 604 (NASA/HST), where star systems are closely packed and asteroid exchange is thought to be possible. Asteroid (514107) 2015 BZ 509 emigrated from its parent star and settled around the Sun in a similar environment. Credit: NASA / Hubble Heritage Team (AURA/STScI)
A new study has discovered the first known permanent immigrant to our Solar System. The asteroid, currently nestling in Jupiter’s orbit, is the first known asteroid to have been captured from another star system. The work is published in Monthly Notices of the Royal Astronomical Society: Letters. The object known as ‘Oumuamua was the last interstellar interloper to hit the headlines in 2017...
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