|Image via Bigthink.com|
Comparatively clueless, that is to say, but not completely clueless.
In the video below, Joel Primack, an astrophysicist at the University of California-Santa Cruz, explains that we don’t yet know the real nature of the dark matter “beyond that it’s pretty cold.” Cold refers to the terminology that Primack coined in 1983. Dark matter is either hot, warm or cold “depending on how rapidly it’s moving in the early stages of the Big Bang,” Primack says.
Continue Learning: http://bigthink.com/big-think-tv/dark-matter-reveals-the-structure-of-the-universe?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+bigthink%2Fmain+(Big+Think+Main)