A Chinese research team has discovered 591 high-velocity stars based on data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) and the European Space Agency's Gaia satellite.
High-velocity stars move unusually quickly and may at some point leave their galaxy, Xinhua news agency reported on Monday.
Of the newly discovered stars, 43 may escape the gravitational constraints of the Milky Way galaxy in future and fly into intergalactic space.
A total of over 550 high-velocity stars had been found since the first one was discovered in 2005.
The new discovery has doubled the total number known, said Li Yinbi with the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC), lead author of the research.