How ‘UFOs’ Curb Black Hole Growth | Basic Space, Scientific American Blog Network

Artist's impression of a galaxy that is releasing material via two particle jets (red/orange) as well as via ultra-fast outflows (grey/blue), both powered by a black hole. Credit: ESA/AOES Medialab

Here is an excellent post about particle jets that take material from around a black hole, (around one solar mass per year) and eject it at speeds of up to 100,000 kilometers per second. It is these outflows that limit a black hole's growth since that material would otherwise be eaten or released via the primary particle jet.

How ‘UFOs’ Curb Black Hole Growth | Basic Space, Scientific American Blog Network:


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Are We Inside a Black Hole?

Does the fact that time moves forward mean our universe is inside a black hole?  Interesting theory:


Was our universe born inside a black hole in another universe?


Paper: http://arxiv.org/abs/1007.0587


Credit: By Alasdair Wilkins

Proof of Dark Matter?

Monumental Scientific Discovery: It appears that proof for dark matter is building momentum. It occurs to me that many don't know the significance of such a discovery.  Amongst other things, evidence of dark matter implies that the universe will end in a big chill where it essentially decays after vast oceans of time.  In this scenario, stars run out of fuel, black holes emit all their energy as radiation and even protons begin to deteriorate, until all heat and energy fades away.