Could primordial black holes be dark matter?
Wednesday, September 21, 2011 - 07:00
in Astronomy & Space
(PhysOrg.com) -- We know that about 25% of the matter in the universe is dark matter, but we dont know what it is, Michael Kesden tells PhysOrg.com. There are a number of different theories about what dark matter could be, but we think one alternative might be very small primordial black holes.