In October 2017, a fast moving, cigar-shaped comet of extrasolar origin was discovered close to the Earth with the Pan-STARRS1 telescope in Hawai’i. Officially named 1I/2017 U1 (‘Oumuamua), the comet was presumably ejected from a forming planetary system, probably by a gravitational kick from a giant exoplanet. Now, using data from ESA’s star-mapping Gaia satellite, Dr. Coryn Bailer-Jones of the Max Planck Institute for Astronomy and co-authors have identified four stars as possible homes of ‘Oumuamua.
http://www.sci-news.com/astronomy/oumuamua-home-stars-06451.html
Thanks ETL!