莎娅·塞尼: 宇宙在扩张到哪里？- 莎娅·塞尼

宇宙在扩张到哪里？- 莎娅·塞尼

观看完整课程：https://ed.ted.com/lessons/what-is-the-universe-expanding-into-sajan-saini

宇宙的生命开始于将近140亿年前的大爆炸，且自那时起便开始扩张膨胀。但宇宙是如何扩张的？宇宙将扩张到哪里？请听莎娅·塞尼解释现有的关于宇宙大爆炸的理论，以及什么（如果有的话）存在于我们的宇宙之外。

课程讲解：莎娅·塞尼，动画制作：Wooden Plane Productions。

The universe has been expanding since the Big Bang nearly fourteen billion years ago, but it is not growing into pre-existing space. Instead, space and time are woven into the universe itself, so 'expansion' means that the fabric of space stretches everywhere at once. Theories like cosmic inflation and string theory suggest our universe could be one of many, each with its own laws and history, but no evidence yet confirms what might exist beyond our cosmic boundaries. Scientists continue to explore these bold ideas, searching for clues in the deepest reaches of physics and astronomy.