Dark Matter

We all know what a galaxy looks like right it's a huge collection of stars and other matter that shaped like a spiral or no lips and if you're in astronomy fan you probably know that most the masses from invisible mysterious material called dark matter. Well, NASA's Hubble Space Telescope just took an image of a galaxy that is none of those things for the first time astronomers have strong evidence for a galaxy not having a significant amount of dark matter. Most astronomers currently believe that dark matter please a fundamental role in our universe and the formation of galaxies this is because galaxy seems to have a lot more mass and what we can account for based on just the start. How much masses in the system is determined by measuring the speed at which galaxies rotate or individual stars and galaxies without the gravity from that mass a galaxy would fly apart if everything in it is moving as quickly as we observe it moving. Decades of research led astronomers to the extraordinary conclusion that eighty. Five percent of the mass in our universe. Is in physical all wavelengths of radiation and that is composed of matter that does not contain protons and neutrons or any type of particle be detected before and that this invisible material is all around us passing through the west without interacting with regular matter except by gravity or some that's a tough pill to swallow and a minority of astronomers wondered maybe we just don't completely understand how gravity works.