Astronomers Discover Densest Galaxy Ever    "This galaxy is more
massive than any ultra-compact drawfs of comparable size," said
Jay Strader, MSU assistant professor of physics and astronomy,
"and is arguably the densest galaxy known in the local
universe."  As detailed in the recent edition of the publication
Astrophysical Journal Letters, the ultra-compact dwarf galaxy
was found in what's known as the Virgo cluster of galaxies, a
collection of galaxies located about 54 million light years from
our own Milky Way.   "Traveling from one star to another would
be a lot easier in M60-UCD1 than it is in our galaxy," Strader
said. "Since the stars are so much closer in this galaxy, it
would take just a fraction of the time."  The discovery of
ultra-compact galaxies is relatively new – only within the past
10 years or so. Until then, astronomers could see these "things"
way off in the distance but assumed they were either single
stars or very-distant galaxies.     The galaxy was discovered
using NASA's Hubble Space