In this scenario, what we know as the Big Bang was sparked by something else happening before it — the Big Bang was not a beginning, but one part of a larger process. Extending the ekpyrotic concept has led to a theory, again motivated by string theory, called cyclic cosmology. I ...
What is ekpyrotic theory? What happened before the Big Bang? Additional resources In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today. Or at least, that's what we've bee...
How did the big bang happen from nothing? According to the theory, the universe was extremely dense and hot. There was so much energy in the universe during those first few moments that matter as we know it couldn't form. But the universe expanded rapidly, which means it became less dens...
The Big Bang Theory stands as the most widely accepted explanation for the origin of the universe. According to this theory, the universe began as an infinitely small, hot, and dense point, which rapidly expanded and continued to stretch over 13.7 billion years. This initial period of rapid i...
Focuses on quantum cosmology, with emphasis on what the universe was before the big bang. Theory suggesting that our universe is but one of many universes existing in a larger multiverse; Possibilities of a parallel universe; Discussion on general relativity and the quantum theory; Principles of ...
"Since events before the Big Bang have no observational consequences, one may as well cut them out of the theory and say that time began at the Big Bang," he said in an interview on the National Geographic show "StarTalk" in 2018. Or perhaps there was something else before the Big Bang...
Some variations on the big bang go down a little smoother than the original. In the simplest version, the beginning of time is a sharp point, where everything we currently observe was mashed into a ball of energy smaller than an atom—then burst outward, duh. But what came before? Physic...
相关知识点: 试题来源: 解析 A 第二段具体说明"big bang" theory的内容,其中第二句"He points out that all 68 species of odontocetes (a sub-order that includes dolphins) ues sound to locate their victims",对照选项A。反馈 收藏
Theory Says Our Universe Is Eating Baby Universes Was Our Universe Born From a Black Hole? A Reason to Assume the Universe Did Not Start With a Big Bang? “The Doppler’s effect is a 180-year old theory nobody has backed up with experimental evidence,” Wilenchik tells Popular Mechanics....
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