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Astronomy, esa, galaxies

A Cosmic Intruder Grabbed Hot Gas From This Galaxy Group

18 Nov , 2013 by Elizabeth Howell

So galaxy group NGC 5044 was just sitting quietly by itself a few million years ago when galaxy NGC 5054 decided to pass right through it. That close encounter finished long ago, but the ricochet is still visible in telescopes as astronomers spotted hot gas rippling through the host galaxy. “Galaxies are social beasts that are […]

european space agency, hot gas, NGC 5044, NGC 5054, XMM-Newton

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