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Read Thomas Kuhn -- it happens all the time and is part and parcel of the nature of inquiry. There are parallels in all disciplines. Just look at Gary Taubes analysis of the fat hypothesis of disease.
To travel at C even an atom would demand infinite amount of energy to achieve that, or so says the theory..? Plus, they would become 2-dimensional and achieve infinite mass, as in black holes, or so the theory says? Hm, and how come we see 13bill years old protoglaxies in all directions 13bill lightyears away..? That means, hm, what does that mean?
the thing is, really the galaxy isnt ever travelling at light speed. its true that we will never be able to accelerate something with mass to lightspeed because it would take infinte energy. what makes the galaxies move faster then light is the fact that the galaxies are moving independently of the expantion of the universe. the expantion is a different force then the gravitation of the galaxy. the reason the galaxies are expanding is because the space is increasing volume so the matter......
.... and the space surrounding the matter is driven further away. right now the idea of a singularity within a blackhole or at the time of the BB is really were our current understanding falls short. we cant deal in infinites which is what we get from GR and our idea of particle physics says nothing about gravity at those lvls. we should actually see results on that front with the LHC. when it comes to our limits on how far and what we can see. u have to think about the fact that evertime we....
look out with a telescope or with our eyes even the light we see is from thousands of light years away which means its thousands of years old. with the most powerful telescopes we can see light that is 13 billion light years away(13 billion years old) so when that light was emitted from those 13 billion year old protogalaxies we get the light and location of the galaxies 13 billion years later. we cant see the universe as it is now.we can only see the light that is here now and wait for more.
If a given galaxy is supposed to be 13bill years away, and has been fast on the move even accelerating, for almost 13bill years, it would mean that that galaxy is much further away than 13bill lightyears now. The Milky way moving towards the Great Attractor at ~600km/s? These far away galaxies must then go even faster? How come galaxies crash when they are supposed to spread? Questions, questions ^^
the thing is sense its the empty space that is expanding, any galaxies clumped together by gravity have enough force to beat the inflation. so the galaxy thats guuna collide with us is more effected by gravity then by the force of the vacuum. ur right about the galaxies going faster at a greater distance away. if u measure the distance a galaxy is moving away from us then if u go twice the distanc eout and measure another galaxy u should find its moving twice as fast away from us.
the coolest thing about cosmology in my opionion is the fact that we can see 13 billion lightyears in each direction at the most...so we dont know how big it really is. we can see those protogalaxies and we detect microwave radiation from the big bang so we know its about 13.7 billion years old. so if u calculate back with what we see of the known universe we get with the expantion a universe thats about 93 billion lightyears across. with other phenom. like gravity waves we could see further
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I never bought the Big Bang garbage.
Plus, they would become 2-dimensional and achieve infinite mass, as in black holes, or so the theory says?
Hm, and how come we see 13bill years old protoglaxies in all directions 13bill lightyears away..?
That means, hm, what does that mean?
These far away galaxies must then go even faster? How come galaxies crash when they are supposed to spread? Questions, questions ^^