One of the largest known stars in the universe underwent a dramatic transformation in 2014, new research shows, and may be preparing to explode. A study led by Gonzalo Muñoz-Sanchez at the National ...

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Recently, the Hubble Space Telescope captured an image of a dwarf galaxy in the constellation Ursa Major. Markarian 178 (Mrk 178) is one of over 1500 "Markarian galaxies," a class defined by their ...

Add Yahoo as a preferred source to see more of our stories on Google. The positions and trajectories of 20 hypervelocity stars as reconstructed from data acquired by the Gaia satellite, overlaid on ...

Hints of impossibly bright, massive objects in the infant universe have forced astronomers to rethink how the first cosmic structures formed. A growing group of researchers now argues that some of ...

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