The spiral galaxy 2MASX J23453268−0449256 is located nearly 1 billion light-years away from Earth, and measures about three ...

The Andromeda galaxy is surrounded by a constellation of dwarf galaxies that are arranged in a highly lopsided manner.

Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, the Milky Way’s mass is about 1.5 trillion solar masses ...

Astronomers at the University of Michigan have discovered a new satellite of the Andromeda Galaxy (M31), the Milky Way’s closest major galactic neighbor, and it has broken the record for the ...

"A supercomputer simulation shows many galaxies merging over time. The parts of galaxies we can see are glowing stars forming from gas in their central parts. Visualizations like these inform ...

An analysis of star movements from the Gaia spacecraft reveals that the Small Magellanic Cloud — a satellite galaxy bound to ...

A century ago, Edwin Hubble revolutionized our understanding of the universe by proving that the Milky Way is just one of ...

A bright star within our Milky Way galaxy photobombed a beautiful new image of a distant galaxy with "patchy" spiral arms.

An ambitious new survey by the Hubble Space Telescope offers the first bird's-eye view of all known dwarf galaxies orbiting the Andromeda galaxy. The data suggests Andromeda had a chaotic past unlike ...

Astronomers have discovered Andromeda XXXV, the smallest and faintest known galaxy, located 3 million light-years away. It challenges existing models of galaxy formation, as similar small galaxies ...

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