The primordial core (nucleus) of the Milky Way galaxy has been discovered by an international team of experts.

Although astronomers have long speculated that the Milky Way galaxy almost probably contains a core of stars, they have never been able to locate evidence for this theory.

The researchers took on the issue in this new endeavor by poring over data from the Gaia satellite telescope.

The galaxy's core stars will most likely have significantly less metal than some other stars since they would have originated before the Milky Way's region was covered in such metals.

If there is a star cluster at the galaxy's centre, it will probably be found in the constellation Sagittarius because it is situated at what appears to be the galaxy's disk's centre.

That still left the crew with the difficult chore of sorting through almost 2 million stars.

With the help of computers and their persistence, they eventually located what they were seeking for a cluster of roughly 18,000 stars at the Milky Way galaxy's heart.

Less than 3% of the metal concentration of stars farther away is present in the cluster's stars, according to the researchers.

In order to put the star cluster to the test, scientists tracked its motion in relation to nearby stars.

They measured the cluster and discovered that it only makes up 0.2% of the Milky Way's mass, despite their conviction that they had discovered the galaxy's centre.