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“We speculate that they may represent a spherical shock wave from an extra-galactic transient event, or the outflow, or a remnant, from a radio galaxy viewed end-on,” the scientists wrote.

As MeerKAT perused the showstopping radio galaxy, the cryptic filaments bridging its two jets came to light.

“In some cases, the radio galaxy can have a great deal of obscuring dust, and you wouldn’t be able to see anything—or almost anything—with an optical telescope,” says Rich.

Through optical telescopes, the first known radio galaxy, Cygnus A, looked like two galaxies colliding.

In January, astronomers used the two sites to observe Sagittarius A* and Centaurus A, a radio galaxy 10 million light years from Earth whose nucleus contains a black hole with the mass of 55 million suns.