Hubble has spotted a galaxy 13.3 billion light years away. The universe was only 0.47 billion years old when that light set off.
One wonders if it's possible to spot the boundaries of the very early universe.http://www.telegraph.co.uk/science/space/9682959/NASA-locates-most-distant-galaxy-ever-discovered.html
How do they know how far away it is? It could be a big one farther away or a smaller one closer....?
Serious question;
How do ythey measure light years????
How accurate is this measuring device????
Or is it just so because a 'Scientist' said so????
They've established that the universe is expanding, stars farther away are receding at a greater speed, so the red shift of the light they send out is a measure of distance.
hyperphysics.phy-astr.gsu.edu/hbase/astro/redshf.html
I will agree about trying to find holes in others theories for most sciences, but in theoretical physics and astronomy etc it seems to be quite the opposite. Anything that makes the universe old, very very large, and expanding, is well accepted. Anything to the contrary is discarded much more easily.
The thing i don't get is (and maybe its because i have been drinking a lot today), but if a solar system is measured as being 13.3 billion light years away (distance) and physics largely agrees that matter can't travel faster than light, then at a minimum it must have taken 13.3 billion years for that solar sytem to get that far away from the epi-centre of the 'big bang', then another 13.3 billion years for that light to travel back as far as earth so that we can see it.. Which makes the universe a minimum of 26.6 billion years old.. at least 13.3 billion years older than current estimates..
Does that make sense?
Latest therory indicates "NO" big bang, as there is no tell tail evedence left over to show it actually happened.
According to so called big Gurus of science, they are hinting on a rapid expansion, in preferance. Well they are, until one of them finds the missing chemical trail to support a big bang.
The "Big Bang" has been gone for quite some time.
The trouble is, regardless of proof (or lack thereof) it is all taught as irrefutable fact and people forget it had the suffix "theory" attached.
Every schoolkid has heard of the Big Bang and it is in every textbook - but no cosmologist / astronomer / physicist etc really believes in it anymore.
That is what I was talking about - its more religion and philosophy mixed with pop culture than it is science.
Motwal dude. I typed a lot and then lost it.
Just google it, there is a fk-load about speed of light slowing (from about 2002 - 2005) and the so-called retorts are pretty weak. Nil really, since as the grant $$$ are not to be found in debunking long-held beliefs are they?
Then suddenly about a year ago CERN had particles breaking the c barrier and what do we get? More theories, not a re-examination of the science that led to the observable conclusion that c may change.
No, suddenly photons are special and can do that (after being told for years nothing can)
It is ignored as the philosophy or religion of astrophysics starts with the pretext that everything is really really fkn old and expanding.
ANYTHING that may suggest otherwise is discarded as creationist claptrap or conspiracy theories.
Trouble is, claiming a photon to be massless and thereby able to exceed c - even briefly - means Mr Planck, or Mr Einstein, or Mr Schrodinger is wrong. The photon plainly and obviously has a wave nature and a particle nature so I am tipping it is NOT the latter bloke.
I'm very skeptical. I'll have a look around.
Oh yeah I meant to say that "theory" in science means a thoroughly tested hypothesis, in other words just about as close to "truth" as you can get while leaving a little wriggle room for future amendment. Its not the same as vernacular usage.
^^^ don't waste too much of your life on it - nor hold your breath - every chance I am very bloody wrong lol
Then again, photons have a particle nature - they carry momentum FFS - yet they have been seen to exceed c.
Plus c has been shown to change (a bit) .......... and all this is ignored?
My point is simply that some good science is often ignored due to the prevailing assumptions held by 'the establishment'.
The fact that Nature published the research about the change in c is heartening - but the lack of proper counter-research is very sad. Seems it was ignored because it may not fit with our preconceived ideas - rather than being experimentally debunked.
^ We're not sure what state it's in.
I wish I could say something about this (Universe organizing)... but I am afraid that my theory will be instantly discarded based on English grammar mistake...
that is the problem with science... that must be always expressed in known linguistic form .. (this is a bit for me like painting beautiful landscape picture using watered down different shades of s**t.)
^ Please don't let that stop you Macro.
...Hang on. No, that can't be right. You can't see light from the very early universe, like the first moments, because that took place right here, where this next comma is on your screen, and the light from that has since long gone ...except that space did expand much faster than light in the universe's early history ...so that very early light shone out (also) from a point that is now a long way away...
...I think it really depends on when this super rapid expansion took place, and how much it expanded in that short time. It will form a kind of horizon.
As for the universe expanding or not; everything is red. And not just light (aka energy) in the visible spectrum. This points to doppler shifting, thus everything is moving away from us. Sure, you can come up with some other theories, and people do all the time, that's science. But the most likely scenario is expansion. I don't know why people are all uptight about some "religion of science" that is above refute. If you can prove otherwise everybody will listen and the understanding of our universe will change. You can't just say "What about this idea? Why aren't you listening to me? I'm listening to me.", you have to actually prove it. At the moment the most likely scenario is the ill-named "big bang theory". Prove otherwise.
in mine theoretical model the only fundamental constant is the TIME. Other factors like forms of energy, forces and dimensions that we so carry about are derivatives only....
there are also few other factors that we are unaware or hardly poses means to calculate now (like entropy to start with)