Astronomers have discovered up to six dark galaxy candidates, bizarre galaxies that seem to be just 12 billion light-years away from stars.
Although galaxies should be occupied with stellar bodies, the dark galaxies are a rare exception. They are inefficient in the formation of glowing stars and are filled with a large amount of matter and gas that emit too little light for modern telescopes to catch, reports ScienceAlert.
Some think these systems formed an integral part of galactic formation, with many theoretical models suggesting that they would exist in the early days of our universe when star formation was not as common and simple as later.
However, not much data has been collected to explore these galaxies for their formation and evolution. The reason for this is the lack of sufficiently visible light that makes it extremely difficult for astronomers to spot a dark galaxy.
For this reason, the recent discovery of physicists at ETH Zurich is important. The report found that the team found the weak galaxies by using the abilities of quasars, distant objects driven by supermassive black holes that are a billion times larger than our sun. [1