Record🤔

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"Too big to be planets, too small to be stars...

Brown dwarfs aren't hot enough to fuse hydrogen in their cores, and they're faint and hard to find.

That also means they stick around for a LONG time—and are great tracers of the Milky Way's history🧵

🧪🔭

🔗: rubinobservatory.org...
"

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  "An illustration of several faint brown dwarfs surrounding a galaxy, viewed from a perspective slightly above the disk. The galaxy occupies the upper left quadrant of the image as a glowing disk extending out of view. The galaxy’s center is a bright yellow glow in the upper left. The bright center rapidly fades to a more subtle glow in the outskirts of the galaxy. Dark dust clouds spiral outward from the center and obscure some of the glow. Two fully illustrated brown dwarfs are visible at the center of the image and to the left, glowing red-orange and with horizontal stripes representing bands of clouds. Several reddish points of varying sizes dot the galaxy farther away, representing the ancient brown dwarfs that could be detectable by Rubin Observatory. The background is black sprinkled with the white pinpricks of distant galaxies."

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  • uri:

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createdAt:

"2024-07-15T18:30:28.000Z"