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yoyopizza
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If the universe is expanding at less than the speed of light, what happens to EM radiation
that is emitted from stars at the edge of the universe?
that is emitted from stars at the edge of the universe?
Not necessarily. The simplest k = +1 geometry, the 3-sphere, is compact ("finite") but has empty manifold boundary ("unbounded"). Such objects are called closed manifolds lending to why you may see the term closed universe.yoyopizza said:But if the universe were finite, wouldn't it then have an edge?
yoyopizza said:But if the universe were finite, wouldn't it then have an edge?
Flatland said:In other words the Universe "loops" back on itself. Why is this so hard for people to understand?
rustytxrx said:astrophysics is complicated for the casual reader (like me) because there are usually several different theories illustrating a single concept, example the shape of the local universe or the shape of the entire universe. to make communication easier many of the theories are reduced to initials or a tag name. this complicates thing a lot for the casual reader.
Keep reading. It took me a week and a half to get thru this article the first time I read it. I had 40 pages of notes that I looked up to get through this one page
http://en.wikipedia.org/wiki/Shape_of_the_Universe
rustytxrx said:astrophysics is complicated for the casual reader (like me) because there are usually several different theories illustrating a single concept, example the shape of the local universe or the shape of the entire universe. [/url]
The nature of EM waves outside the universe is largely unknown. It is theorized that they may behave differently or may not even exist in the same form as we know them within the universe.
It is currently not known if EM waves can travel outside the universe. The laws of physics that govern EM waves may not apply in the same way outside the universe.
No, there is currently no evidence of EM waves beyond the universe. As our technology and understanding of the universe is limited, it is difficult to gather any concrete evidence of what exists outside the universe.
We do not definitively know that EM waves do not extend infinitely beyond the universe. However, based on our current understanding of the universe and its boundaries, it is unlikely that EM waves would exist in the same form outside of it.
The existence of EM waves outside the universe, if proven, could have significant implications for our understanding of the universe and the laws of physics. It could potentially lead to a complete shift in our current understanding of the universe and the fundamental forces that govern it.