Astrophysicists were baffled when they discovered a galaxy located 65 million light years away from us with no dark matter.
So to those who are wondering why they were baffled, here is a brief. The universe that we know consists of planets, stars and galaxies. You will be shocked to learn that this only covers 5% of the universe. Scientists so far have only been able to comprehend this 5%.
The other 95% make up what they call Dark Matter and Dark Energy. These two play an important role in the formation of the galaxies in the early universe. It remains an unsolved mystery in the study of physics.