The ecosystem that controls a galaxy’s future is coming into focus

The circumgalactic medium has been hard to observe, but new tools now make it possible.

cgm simulation

COSMIC CLOAK  Whirls of cold and hot gas billow in this simulation of a circumgalactic medium surrounding a galaxy. With new tools and simulations, researchers have learned that the CGM helps a galaxy recycle its materials. 

M.S. Peeples et al/FOGGIE Project

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