an image of a very large galaxy in the sky
Arp 143 Caption: A spectacular head-on collision between two galaxies fueled the unusual triangular-shaped star-birthing frenzy, as captured in a new image from NASA's Hubble Space Telescope. Credits: Image - NASA, ESA, STScI, Julianne Dalcanton (Center for Computational Astrophysics, Flatiron Inst. / UWashington)
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