James Webb telescope reveals optical artifacts around galaxy Messier 77

unian.ua (Ukrainian)

The James Webb Space Telescope captured mysterious rays emanating from galaxy Messier 77. These bright orange beams are not actual galactic features but optical artifacts known as diffraction spikes. The prominent rays are caused by the interaction of the galaxy's bright, compact core with the Webb telescope's hexagonal mirror segments and support struts. This phenomenon creates a characteristic six-pointed starburst pattern. Messier 77 is an active galactic nucleus powered by a supermassive black hole. It also exhibits a central bar structure and active star formation, earning it the nickname "Squid Galaxy" due to faint hydrogen gas streams.


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