Fascinating. How do they determine the shape of dark matter though? Just from extrapolation?
and another thing, does the representation of a hubble cross section in 3D show gallaxies as they would be if a snapshot of a single moment in time of the Universe were taken, or are the time/distance changes represented as we see them now?
Fascinating.
ReplyDeleteHow do they determine the shape of dark matter though? Just from extrapolation?
and another thing, does the representation of a hubble cross section in 3D show gallaxies as they would be if a snapshot of a single moment in time of the Universe were taken, or are the time/distance changes represented as we see them now?
Perhaps DM's lumpy for a similar reason - perhaps its structure and spread can be derived?
ReplyDeleteDunno! email 'im! :)
Wasp has hints of a clockwork brain
ReplyDelete