SUMMARY: Japanese researchers using the Subaru Telescope have found a large galaxy caught in the act of consuming a smaller companion galaxy. It's a messy eater; there's a wispy trail of stars over 500,000 light-years long, which is the longest astronomers have ever seen. Examples of this kind of galactic destruction are hard to find because the consumed are usually dim dwarf galaxies. We have only indirect evidence of digested galaxies in our own Milky Way, like groups of stars traveling in an unusual trajectory.

View full article
What do you think about this story? post your comments below.