Globular clusters consist of an extremely tightly packed group of stars in a spherical ball.
The clusters are found in a loose halo surrounding the galaxy. Typically, globular clusters contain about 500,000 stars all of which are relatively old in comparison to stars within the Milky-Way. Their age ranges between 12 to 15 billion years. M92 lies approximately 10,000 light-years from us and shines at a magnitude of 6.5, so you'll need a pair of binoculars to spot it. However, this cluster is more compact and only powerful telescopes can resolve its stars.