6 years ago
'Permanent' interstellar visitor found
An asteroid in Jupiter's orbit may have come from outside our Solar System, according to a new study. Unlike 'Oumuamua, the interstellar object which briefly visited the Solar System earlier this year, 2015 BZ509 (affectionately known as BZ) seems to have been here for 4.5 billion years. This makes it the first known interstellar asteroid to have taken up residence orbiting the Sun. It is not yet known where the object came from.
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