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crazco
- 15
- 0
there was a singularity, what made it expand
i so confused
i so confused
crazco said:there was a singularity, what made it expand
i so confused
nicksauce said:No one knows the answer to this question. It is an open area of research. The relatively new field of Quantum Cosmology tries to answer such questions.
marcus said:And currently one of the areas of QC getting a lot of attention is how to test the models. There is an international workshop on that coming up this year in Stockholm.
crazco said:thank you
not answer i was hoping for because its a shame we have yet to know why
i will have to look at all of those papers hopefully the vocabulary will not be so difficult for me
excuse my english i learning
Chronos said:Expansion was a shot in the dark by Alan Guth to address problems like homogenity and thermalization of the universe. It works well and is still widely accepted to this day. It is what is called an effective theory - it appears to work but has no underlying physics that explains why it works.
Scientists have observed that galaxies are moving away from each other and the space between them is increasing. This was first discovered by astronomer Edwin Hubble in the 1920s and has been confirmed by various experiments and observations since then.
The Big Bang theory is the most widely accepted explanation for the origin of the universe. The evidence for this theory includes the expansion of the universe, the cosmic microwave background radiation, and the abundance of light elements such as hydrogen and helium. These observations support the idea that the universe began as a singularity and has been expanding and cooling ever since.
Dark energy is a mysterious force that is thought to be responsible for the accelerating expansion of the universe. It is believed to make up about 68% of the total energy in the universe and its presence can be inferred from the observed expansion rate of the universe. However, its exact nature and origin are still not fully understood.
The expansion of the universe plays a crucial role in the formation and evolution of galaxies. As the universe expands, matter becomes less dense, allowing gravity to pull matter together and form galaxies. The rate of expansion also affects the distribution of matter in the universe and can impact the size and shape of galaxies.
Based on current observations and theories, it is believed that the universe will continue to expand forever. However, the rate of expansion may change over time and could potentially lead to a "Big Rip" in which the universe expands so rapidly that all matter is torn apart. Further research and observations are needed to fully understand the fate of the universe.