Sep 29, 2022

Our galaxy is rippling thanks to a mysterious force — we might finally know what it is

Posted by in category: space

An analysis of over 20 million stars shed new light on our galaxy’s cannibalistic past.

A nearby mini-galaxy, the Sagittarius dwarf galaxy, slowly crashed through the Milky Way and ripped stars out of their regular orbits on more than one occasion, according to a new paper in the Royal Astronomical Society.

Their analysis shed new light on the galaxy’s violent past — one in which galaxies tear into each other, shifting their structures for eons to come.


Researchers used data from the European Space Agency’s Gaia space observatory to compare the movements of over 20 million stars located throughout our galaxy, as per a LiveScience report.

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