The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered cluster, which astronomers named HVGC-1, is now on a fast journey to nowhere. Its fate: to drift through the void between the galaxies for all time. ...
A Globular Cluster Toward M87 with a Radial Velocity < -1000 km/s: The First Hypervelocity Cluster - Nelson Caldwell et al
- arXiv.org > astro-ph > arXiv:1402.6319 > 25 Feb 2014 (v1), 04 Apr 2014 (v2)