Take Einstein’s 1917 spherical finite static universe & adjust it to fit the Big Bang paradigm. All the energy created by BB is flung out, by Dark Energy, in the shape of a rapidly expanding shell. The two sides of the shell expand away from each other faster than light, thus are not gravitationally linked. Thus the gravity or curvature of space time is determined only by the LOCAL shell. Einstein’s universe had a 3D hypersphere as its surface, in this model BOTH sides of the shell width are a 3D hypersphere. This means that on both sides of the shell width ALL light geodesics CURVE BACK ..read more

My understanding is that during Big Bang Nucleosynthesis, matter and antimatter was created in almost equal amounts. This has oft lead to questions about what happened to all the antimatter, as it certainly isn't around today. As I understand, during Nucleosynthesis, matter and antimatter was being created from the abundant radiation energy, which in my mind would consist of something like ultra-high energy photons and other particles. Matter and antimatter is created from radiation, with most of it immediately annihilating and turning back into radiation. This would create a temporary system ..read more

I’m an engineering major trying to learn about cosmology and astronomy more as it always intrigued me . I’ve not particularly studied or taken any course on it but I wanna learn more about it but not indulge much in the mathematics of it and mostly the theoretical aspects to read as a hobby ! Any book suggestions or courses I could take as a hobby? submitted by /u/Luviejn [visit reddit] [comments ..read more

submitted by /u/DistributionNo9968 [visit reddit] [comments ..read more

I’m interested in learning more about astronomy and cosmology. Does anyone know of any free education or maybe free online courses I could take? submitted by /u/KnuckleHead0911 [visit reddit] [comments ..read more

I understand that the Big Bang started as a very small point outside of space and time. I cannot imagine there being no space. There is nothing, and what is nothing? submitted by /u/Intelligent-Car-2998 [visit reddit] [comments ..read more

Is it likely that our current universe will implode on itself, resulting in another Big Bang? Are there any problems with such a theory? Is this the most likely explanation for our own Big Bang? submitted by /u/Ok_Investment_246 [visit reddit] [comments ..read more

I was reading this writing (https://davidwoolsey.com/AttO/AttO_blog/Entries/2020/7/13_Black_Holes_and_Transverse_Tidal_Effects%2C_a_revised_essay_on_some_thoughts.html) about considering tidal effects in black hole models. Outside of the main topic of the writing, there is a part that got my attention: The authos indicates that in the context of Hawking radiation, only particles (like photons) with small enough orbital angular momentum will escape to infinity. This made me think: could there be black holes with extremely large angular momentum that could transfer themselves part of it to esca ..read more

Why Positron and Electron annihilate? Why Positive & Negative particles are attractive to each other? Both event has something to do with positive and negative charge. So isn't it is possible that both has the same physics applied but in different angle. E.g Positron and Electron annihilate each other. Whereas in case of + & - particles like proton & electron: Just like gravity; for every particles there is a nearby space in a given tiny region(parameter). Those space is full of + - energy.(I call it as space energy). particle has + space energy, glued to each other. particle has ..read more

submitted by /u/Competitive_Travel16 [visit reddit] [comments ..read more