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What Is a Galaxy?

On a clear night with dark skies, you can catch a glimpse of the Milky Way, a luminous arc stretching across the horizon. To the unaided eye, its translucent clouds are simply beautiful splashes in ...
A gamma ray glow at our galaxy’s center has puzzled scientists for almost two decades. New computer simulations back the ...
Our Milky Way is far from calm — it ripples with a colossal wave spanning tens of thousands of light-years, revealed by ESA’s ...
Astronomers may have uncovered the origins of the mysterious “little red dots,” some of the strangest galaxies seen in the early universe. These tiny but brilliant objects, discovered by the James ...
Astronomers have unveiled a new catalog of massive galaxy clusters, revealing new insight on the evolution of the universe ...
The James Webb Space Telescope captured a snapshot of the Cartwheel Galaxy in greater detail than ever before, with new photos released by NASA and its partners on Tuesday. Located 500 million ...
One of the Milky Way’s smallest galactic neighbours seems to have a supermassive black hole at its centre, upending ...