PKS 2014-55
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PKS 2014-55 is an X-shaped radio galaxy discovered by the MeerKAT radio telescope in
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...
that is located 800 million light-years away from Earth. The galaxy looks like two
boomerang A boomerang () is a thrown tool, typically constructed with aerofoil sections and designed to spin about an axis perpendicular to the direction of its flight. A returning boomerang is designed to return to the thrower, while a non-returning ...
s, with jets extending 2.5 million light years across. Then the jets are “reversed” by the pressure of intergalactic gas, later deflected by gas pressure to form an “X” shape.


References

Galaxies Telescopium {{galaxy-stub