Hubble Space Telescope spots streams of star formation flowing between galaxies

Stars from colliding galaxies flow together in a newly upgraded image from NASA’s venerable space telescope.

The Hubble Space Telescope has been hard at work for more than three decades, and scientists have never lost their fascination with the observatory’s vast archives. Take, for example, this “river of star formation,” NASA officials termed it in a statement released on Wednesday (May 17), takes place in an intersection of four dwarf galaxies within the Hickson Compact Group 31 (HCG 31) of galaxies .

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