There are about two dozen so - called hypervelocity stars known to be escaping the galaxy. (keckobservatory.org)
«Why space dust emits radio waves upon crashing into a spacecraft: A new simulation provides the first mechanism to explain why plasma from hypervelocity impacts generates electromagnetic radiation.» (sciencedaily.com)
The star, dubbed HE 0437 - 5439, is an early - type star and one of ten so - called hypervelocity stars so far found speeding away from the Milky Way. (carnegiescience.edu)