Astronomy is the study of celestial objects ... As Aunty Joanne explains, the Emu in the Sky, or the Dark Emu, is a well-known constellation that is outlined by the dark areas in the Milky Way.

According to the paper, ASKAP-EMU images show that G278.94+1.35 has an angular size of, at most, 200 by 194 arcminutes, which corresponds to a diameter of 512 by 495.5 light years. However ...