Researchers from the Harvard Smithsonian Center for Astrophysics have devised a new way to measure the mass of our galaxy – using hypervelocity stars!
The post Determining the Mass of the Milky Way Using Hypervelocity Stars appeared first on Universe Today.
Back in 1988, astronomer Jack Hills predicted a type of “rogue”star might exist that is not bound to any particular galaxy. These stars, he reasoned, were periodically ejected from their host galaxy by some sort of mechanism to begin traveling through interstellar space. Since that time, astronomers have made numerous discoveries that indicate these rogue, […]