AUTHOR: DARK MATTER (Kasper T. Toeplitz + Antoine Chessex)
/ Abstract / Drone / Psych / Noise
FORMAT: EP - 2011
Licensed Creative Commons by-nc-nd/3.0
In astrophysics and cosmology, dark matter is hypothetical matter of unknown composition that does not emit or reflect enough electromagnetic radiation to be observed directly, but whose presence can be inferred from gravitational effects on visible matter. According to present observations of structures larger than galaxy-sized as well as Big Bang cosmology, dark matter accounts for the vast majority of mass in the observable universe. The composition of dark matter is unknown, but may include ordinary and heavy neutrinos, recently postulated elementary particles such as WIMPs and axions, astronomical bodies such as dwarf stars and planets, and clouds of nonluminous gas. It has been noted that the name "dark matter" serves mainly as an expression of our ignorance, much as the marking of early maps with "terra incognita".