An intriguing signal could be due to “dark matter annihilations” pops up on the left of this data gathered by NASA’s Fermi Gamma-ray Space Telescope
NASA's Fermi Gamma-ray Space Telescope may provide the best evidence yet for the existence of dark matter. The evidence comes from gamma-ray seen streaming away from the center of our own galaxy.
NASA's Fermi Gamma-ray Space Telescope may provide the best evidence yet for the existence of dark matter. The evidence comes from gamma-ray seen streaming away from the center of our own galaxy.
Dark matter is a mysterious substance which makes up the vast majority of the matter in the Universe. It cannot easily be detected, providing the name, but gravitational effects on stars and galaxies suggest its presence.
Dark matter is believed to draw matter together through gravitation, assisting the buildup of galaxies. Astrophysicists are still uncertain as to the exact nature or composition of dark matter, as it has never been directly measured. Gravitational effects on normal visible matter are the only evidence dark matter provides to reveal its existence.
Current models of the universe suggest it is composed of 26.8 percent dark [sic: "light"] matter, while less than five percent is ordinary matter. The rest is dark [sic: "light"] energy.
