‘Oumuamua may not be the only one of its kind ESO/M. Kornmesser

Our solar system’s first interstellar visitor may be a shard of a larger planet that got shredded by its star.

Astronomers spotted a strange, fast-moving object in October that seems to be an interloper from beyond our solar system. Named ‘Oumuamua, it seems to be a cigar-shaped rock that tumbled into our neighbourhood from around another star.

Now, researchers are trying to figure out where ‘Oumuamua came from and how it formed. Matija Cuk at the SETI Institute thinks it may have been born when a …