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A team of astronomers used the Hubble Space Telescope to study very old, low-radiation stars in the NGC 6752 globular group, when they discovered a historical discovery: a dwarf galaxy until then unknown of 30 million light-years.
The purpose of the study was to study white dwarf stars within this group, using them to measure the age of the globular group, but outside the group . In the observed area, a compact collection of stars emerged and, after a careful badysis of their glare and their temperatures, the team came to the conclusion that such stars were not really part of the group (which is part of the Milky Way) but millions of light-years away and were part of a galaxy still unknown.
This galaxy, called Bedin 1, was elongated and modest in size, measuring about 3,000 light-years at its widest point. In addition to being small, the galaxy has an incredibly low brightness and has therefore been clbadified in the category of spherical dwarfs. This type of galaxy has common characteristics such as small size, low light, lack of dust and very old stars. There are about 36 such galaxies in the local group, of which 22 are Milky Way satellites.
Analyzing the properties of their stars, scientists calculated that Bedin 1 was 13 billion years old, being almost as old as the universe and, because of its (meaning little or no 39, interaction with other galaxies), we can say that it is a living fossil of the primitive universe.
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