Sentence:  Some resemblance to terrestrial things, it is true, everyone can behold in the heavens. "Corona", for example, is like a crown, or, as the Australian black fellows know, it is like a <WSD>boomerang</WSD>, and we can understand why they give it the name of that curious curved missile. 
Meaning of the word marked with <WSD> tags:  A flat curved airfoil, that spins about an axis perpendicular to the direction of flight, that was originally used in various parts of the world as hunting weapons or, in returnable types, for sports or training.