or maybe a more appropriate title is "how do you know when a galaxy is officially old?"
Anyway, I wrote an article for the conversation with astronomers Tanya Hill and Sarah Brough describing some new research on how galaxies stop forming stars.
Giant galaxies die from the inside when they stop making stars
Anyway, I wrote an article for the conversation with astronomers Tanya Hill and Sarah Brough describing some new research on how galaxies stop forming stars.
Giant galaxies die from the inside when they stop making stars
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| Galaxy clusters are impressive but do they hinder star formation? NASA, N Benitez (JHU), T Broadhurst (Racah Institute of Physics/The Hebrew University), H Ford (JHU), M Clampin (STScI), G Hartig (STScI), G Illingworth (UCO/Lick Observatory), the ACS Science Team and ESA |
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