In contrast to our local neighborhood near the Sun and solar system, there is (as we saw in The Milky Way Galaxy) ample evidence strongly suggesting that about 90% of the mass in the entire galaxy is in the form of a halo of dark matter. There are ghosts in our galaxy’s past. "This is the most energetic cosmic event, besides the Big Bang, which we know about," said team member Maxim Markevitch of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. This discrepancy is used to detect the existence of dark matter in galaxies and the universe. Ana Bonaca (Center for Astrophysics, Harvard & Smithsonian) announced June 11th at the meeting of the American Astronomical Society in St. Louis that she and colleagues have found evidence of a dark matter clump in the outskirts of the Milky Way. or, most excitingly, it could be our first evidence for a special type of light dark matter, such as an axion-like particle. Since the confirmation of dark matter’s existence, a preponderance of dark matter in galaxies and clusters of galaxies has been discerned through the phenomenon of gravitational lensing—matter acting as a lens by bending space and distorting the passage of background light.

... with a Universe that’s made up of 5% normal matter, 27% dark matter and 68% dark energy. This means that in these galaxy rotation curves it has been observed that the rotation speed of stars is "constant", regardless of the distance to the center of the galaxy. Let's look at the evidence, and see what dark matter's presence means for our universe. The discovery, using NASA's Chandra X-ray Observatory and other telescopes, gives direct evidence for the existence of dark matter. Now astronomers have found a way to detect them. While the dark … Do we live in a dark matter universe or do we live in a plasma universe? Why do astronomers believe there's dark matter when it cannot be directly detected? The clumps of matter in this baby picture of the universe evolved into the galaxy superclusters we see today, and it was dark matter that clumped first and drew the regular matter … We infer its presence using gravity, but what if our … In other words, there is apparently about nine times more dark matter than visible matter. 7 Independent Pieces Of Evidence For Dark Matter. The dark matter paradigm doesn't just fit data, it has predictive power. Is there an alternative to dark matter?