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CosmosUp | August 15, 2022

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Milky Way Is Still Hungry

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Milky Way Is Still Hungry

Astronomers from the University of Cambridge UK, have noticed how our galaxy draw to it and includes groups of stars from the nearby galaxies. The recent “victim” is the dwarf galaxy Sagittarius.

Astronomers observed that an elongated tails of stars are pulled out of the dwarf galaxy “Sagittarius” and absorbed by the Milky Way.

In the last 500 million years, Sagittarius, which was once one of the brightest dwarf galaxies in the vicinity of the Milky Way, has lost all mass of interstellar gas and half of it stars, captured by the colossal gravitational forces of our galaxy.

The researchers came to this conclusion by analyzing the density distribution on the stellar maps which include over 13 million stars.

Sagittarius dwarf galaxy

A map showing streams of stars being pulled from the Sagittarius dwarf galaxy.

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