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Yoni
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Can anyone explain why is it said that looking at other gallaxies from our Milky Way it would seem that we are at the center of the universe?
As I understand it, there is a limit to how far we can see due to the finite speed of light. We are at the center of a sphere of what we can see.Fredrik said:What does the speed of light has to do with it?
I would just say that it's because all the distant galaxies are moving away from us. (You would however make the same observation from any galaxy in the universe. Distant galaxies are moving away from you no matter where you are).
Yoni said:Can anyone explain why is it said that looking at other gallaxies from our Milky Way it would seem that we are at the center of the universe?
Yoni said:Can anyone explain why is it said that looking at other gallaxies from our Milky Way it would seem that we are at the center of the universe?
The CMB is not isotropic; we're moving at about 600 km/s relative to it: http://apod.nasa.gov/apod/ap010128.htmlChronos said:We are equidistant from the 'surface of last scattering' - i.e., the redshift of the CMB is exactly the same in all directions.
OS Richert said:I think this is why we originally thought we were in the center. When we first noticed that the universe was expanding, every direction we looked it was moving away from us like we were in the center! Boyah!
"We in the Center" refers to the idea that humans, or life on Earth, may hold a special or central position in the universe. This concept has been debated for centuries and continues to be a topic of discussion among scientists and philosophers.
The concept of being at the center of the universe is intriguing because it goes against our understanding of the vastness and complexity of the universe. It also raises questions about our place and significance in the grand scheme of things.
Currently, there is no scientific evidence to support the idea that humans or Earth hold a special position in the universe. In fact, our understanding of the universe suggests that we are just one small part of a much larger and constantly expanding universe.
From a scientific perspective, the idea of being at the center of the universe is seen as a misconception or a human-centric bias. It is based on outdated models and observations that have since been disproven by modern scientific discoveries.
The Copernican principle, also known as the principle of mediocrity, states that there is nothing special about our place in the universe. It is based on the idea that our observations and experiences are not unique and can be explained by universal laws. This principle directly contradicts the concept of being at the center of the universe.