It turned out that the structure of the Milky Way differs from the ideas of scientists.
First of all, the rotation speed of the stars in its disk does not coincide with observations in other galaxies. Although many of them have accelerated rotation at their edges, the Milky Way does not exhibit this.
This discovery raises questions about the nature of dark matter and its distribution in our galaxy.
Another surprising discovery concerns its mass. This is approximately 200 billion solar masses, five times less than previous estimates. This makes the Milky Way extraordinarily poor compared to its peers.
Source: Ferra
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