January 27, 2005 A. newfound object in the constellation Cetus may be the youngest globular cluster in the galaxy, says an astronomer in Chile.. If so, it’s akin to a 30-year-old living in a ...

Call those users “nodes” and their many social media connections “edges,” and you’ve got a massive, but sparse, graph. The graph is sparse because most users have, on average, about 100 friends. For a ...