A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

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Supermassive black holes, thought to be 1,000 times larger than previously believed, have been discovered in LRD-type ...

Giant radio galaxies are cosmic megastructures that can span millions of light-years, making them some of the largest-known ...

Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...