Have a look at this, WanderingLands.
I think it explains why the further away something is, the faster it is moving away from us. The faster something is moving, the greater the Doppler effect; with fire engines this means the pitch of the siren is lower, in galaxies the light is redder. It is extremely simple and can be reproduced under laboratory conditions; it is a very plausible explanation for what we observe.
You say:
WanderingLands wrote:'Expansion' is different from a 'Big Bang', because expansion only connotes that something is only getting gradually larger while 'Big Bang' connotes a spontaneous explosion, so that would be a misnomer. Redshifts are not proofs of the Big Bang, as they are mostly unreliable and unrelated to distances. It's been shown by Halton Arp and others that the quasars with high redshift values are associated with galaxies and are close by them, which means that the redshifts aren't dopplers, and more conclusively, the Big Bang is not true.
Nobody knows the exact conditions or causes of the expansion that happens to be called the Big Bang, but it is nonsense to say that anything Halton Arp discovered proves the Big Bang untrue, particularly since the web page you cite says:
"Arp believes that the observed redshift value of any object is made up of two components: the inherent component and the velocity component."
In other words, the source you claim disproves the Big Bang accepts the most compelling evidence for it.
To be clear, not only is an expanding universe is the most plausible explanation for red shift, it also is the best explanation for why the universe is not collapsing because of gravity. Prior to the Big Bang theory, Einstein tried to account for what he believed to be a stable universe by introducing a completely arbitrary force that just happened to push as much as gravity pulled; he later called this 'cosmological constant' the greatest blunder of his career.
It is a mystery what happened and why, but some version of the Big Bang is overwhelmingly likely, better yet, it doesn't have to posit any 'inherent component' for red shift that has not been observed under laboratory conditions, unlike Doppler, nor does it involve scientists being in cahoots to suppress the 'Truth'.