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sdemjanenko
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I have heard that people say the universe is accelerating, however i cannot find direct evidence of these claims anywhere. What has led people to believe that the expansion of the universe is accelerating?
sdemjanenko said:I have heard that people say the universe is accelerating, however i cannot find direct evidence of these claims anywhere. What has led people to believe that the expansion of the universe is accelerating?
It is simply a conjecture, there is no proof.sdemjanenko said:I have heard that people say the universe is accelerating, however i cannot find direct evidence of these claims anywhere. What has led people to believe that the expansion of the universe is accelerating?
intransnet said:Please correct me but if the Universe were to be accelerating inwards i.e. into a Mega black hole -wouldnt the same acelerating attributes match i.e. the star closer to the black hole would accelerate away from those further away and those stars further away would be seen also as accelerating away from those closer (getting further distant) - so rather than explaining it as an unfathomable scenario of an endless expaning entity - it then makes sense that we are actually contracting at an acceleratiing rate , not expanding
intransnet said:Please correct me but if the Universe were to be accelerating inwards i.e. into a Mega black hole -wouldnt the same acelerating attributes match i.e. the star closer to the black hole would accelerate away from those further away and those stars further away would be seen also as accelerating away from those closer (getting further distant) - so rather than explaining it as an unfathomable scenario of an endless expaning entity - it then makes sense that we are actually contracting at an acceleratiing rate , not expanding
sdemjanenko said:I don't understand how SN 1A can determine that the universe is accelerating. From what i see, the older things are the higher their redshift, which just means that things were moving faster in the past. If anything it should be slowing down since closer galaxies have blueshifts meaning that it is coming together. What we see out there is not what is actually happening now.
The accelerating universe refers to the phenomenon in which the expansion of the universe is increasing over time. This means that galaxies and other celestial bodies are moving away from each other at a faster rate than they were in the past.
The exact cause of the accelerating universe is still unknown, but scientists believe it is due to a mysterious force called dark energy. Dark energy is thought to make up about 70% of the universe and has a repulsive effect on matter, causing the expansion to accelerate.
Scientists have used multiple methods to measure the expansion rate of the universe, including observations of distant supernovae and the cosmic microwave background. These measurements have consistently shown that the expansion is accelerating, providing strong evidence for the accelerating universe.
The accelerating universe has significant implications for our understanding of the universe and its fate. It suggests that the expansion will continue to accelerate, eventually causing all galaxies outside of our own local group to become too far away to be observable. It also raises questions about the ultimate fate of the universe and the role of dark energy in its expansion.
There have been some alternative theories proposed that could explain the observations of the accelerating universe without the need for dark energy. However, these theories have not been widely accepted and do not have as much supporting evidence as the current model of an accelerating universe. Further research and observations will continue to test and refine our understanding of this phenomenon.