An article published in “The Astrophysical Journal” reports a study of supermassive black holes that emit jets of energy that are aimed in different directions over time. A team of researchers led by Francesco Ubertosi of the University of Bologna, Italy, combined observations conducted with NASA’s Chandra X-ray Observatory and the VLBA radio telescope to examine 16 galaxies finding that about a third of their supermassive black holes emit jets that changed direction significantly within the last 10 million years. For this type of emission, they were compared to the Death Star.