Right: A cross-section from a simulation showing the heart of collapsar where the collapsing star forms an accretion disk (orangle plumes) before swirling into a black hole 3 times more massive than the sun. The scale is in kilometers. Credit: Woosley, UC Santa Cruz
“once more, with feeling” (I may be a creep, but I’m not a psychopath)
”..they do not interact with the electromagnetic force (via photons) so they cannot be “seen” and they do not interact with the strong nuclear force, so they cannot be “felt” by atomic nuclei.”
http://www.universetoday.com/14052/digging-for-dark-matter-the-large-underground-xenon-detector/