It Looks Like a Black Hole. It Acts Like One. It Could Be Something Else Entirely.

It’s hard to not be enamored with the gravitational mechanics of a black hole. Past a black hole’s event horizon, absolutely crushing gravity plays havoc on our understanding of physics and produces mind-boggling theoretical concepts such as “singularity” and more grotesque ideas like “spaghettification.” Because these amazing celestial objects are, by their nature, extremely difficult to detect (they essentially gobble light, after all), some scientists wonder if there could be similar massive, black hole-like objects that our advanced telescopes simply can’t detect—or even know to look for in the first place.

It Looks Like a Black Hole. It Acts Like One. It Could Be Something Else Entirely.