Entire galaxies feel the heat from newborn stars: Bursts of star birth can curtail future galaxy growth

(Phys.org) —Astronomers using the NASA/ESA Hubble Space Telescope have shown for the first time that bursts of star formation have a major impact far beyond the boundaries of their host galaxy. These energetic events can affect galactic gas at distances of up to twenty times greater than the visible size of the galaxy—altering how the galaxy evolves, and how matter and energy is spread throughout the Universe.

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