If the distance between distant objects is increasing then any expansion must be able to overcome the very small gravitational attraction between them ...am i right to think that gravitational attraction never gets to zero no matter how much the objects are seperated? So if there is some...
I've just been thinking more about the explanation above: if the electromagnetic/nuclear forces are great enough to hold matter together and the gravitational force is great enough to hold galaxies together as space expands, there must be some 'force' value associated with expansion - i.e. the...
ok great thanks - so it is actually space expanding and carrying any matter along... units of distance remain the unchanged - so is current thinking that 'space' is expanding (if so how is this different from the abandoned cosmic ether idea? - what is expanding as it affects distance between...
Hello all,
so I've always wondered about the expansion of the universe as indicated by the observed doppler (red) shift... i get the observed spectrum change and how this can be credited to the stretching of electromagnetic waves... what doesn't make sense to me is that if this is due to a...