Billions of New Neighbours?

(ESO PoTW) – Astronomers estimate that the Milky Way contains at least between 25 to 100 billion brown dwarfs. RCW 38 probably contains even more less massive, fainter brown dwarfs, which are beyond the detection limits of this image — so this new estimate could actually be a significant underestimation. Further surveys will reveal the true number of brown dwarfs lurking in the Milky Way. …

eso potw1729

ESO potw1729: Brown dwarfs in star cluster RCW 38

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