Lift up your eyes [and/or telescopes too]on high,
and behold who hath created these things,
that bringeth out their host by number... Isaiah 40:26
"Using data from the Large Sky Area Multi-object Fiber 
Spectroscopic Telescope (LAMOST) and ESA’s star-mapping satellite Gaia, astronomers have discovered 591 new high-velocity stars in the halo of our Milky Way Galaxy.
High-velocity stars are members of Milky Way’s halo, moving very fast in highly elliptical orbits around the center of the galaxy.
There are four subclasses of these stars: hypervelocity stars (fastest stars in the Galaxy), runaway stars, hyper-runaway stars, and fast halo stars.
These stars mark the presence of extreme dynamical and astrophysical processes, especially when a star approaches or even exceeds the escape velocity of the Milky Way at its position."
BreakingSciNews