Astronomers Solve Mystery of Runaway Supermassive Black Hole.

An unusually thin structure of stars, recently discovered by the Hubble Space Telescope, could be a galaxy seen edge-on, according to a study by researchers at the Instituto de Astrofísica de Canarias (IAC). This finding goes against the original interpretation in which a fleeing supermassive black hole was leaving a trail of stars in its wake. The new interpretation is published in the journal Astronomy and Astrophysics Letters.