摘要
26.1. Theory 26.1.1. Evidence for Dark Matter ： The existence of Dark （i.e., non-luminous and non-absorbing） Matter （DM） is by now well established [1,2]. The earliest, and perhaps still most convincing, evidence for DM came from the observation that various luminous objects （stars, gas clouds, globular clusters, or entire galaxies） move faster than one would expect if they only felt the gravitational attraction of other visible objects. An important example is the measurement of galactic rotation curves.
26.1. Theory 26.1.1. Evidence for Dark Matter ： The existence of Dark （i.e., non-luminous and non-absorbing） Matter （DM） is by now well established [1,2]. The earliest, and perhaps still most convincing, evidence for DM came from the observation that various luminous objects （stars, gas clouds, globular clusters, or entire galaxies） move faster than one would expect if they only felt the gravitational attraction of other visible objects. An important example is the measurement of galactic rotation curves.
