「大環」——誰都沒想到的,宇宙最神秘的巨大結構

Topchan December 18, 2025
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Topchan

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在探討宇宙起源的研究領域中,「宇宙大爆炸理論」已經成為主流,至今已經約一個世紀了。 根據這個理論,大約在一百三十八億年前,所有的物質、能量、空間,甚至是時間本身,都被壓縮在一個極度密集、高溫的奇異點裡。 不過,這可不是我們一般所想的那種「爆炸」場面。 實際上,是整個「空間」本身突然劇烈地擴張了開來。 所以,也就不存在什麼「宇宙的中心」。 整個宇宙原本就是那個「中心」,只是後來在數十億光年的規模上不斷膨脹而已。 而說穿了,我們現在也還待在那個「爆炸起點」之中。 從那一瞬間開始,宇宙就一直在膨脹,同時也在持續冷卻中。 隨著宇宙的擴張,一開始是處於高溫的電漿狀態,接著產生出基本粒子,再進一步形成原子,最後演化成恆星與星系。 這套理論,其實有不少直接的觀測證據支持。 像是被認為是大爆炸遺留的「宇宙微波背景輻射」、星系的紅移現象,還有初期宇宙中氫、氦、鋰的比例,這些都和理論相符。 基於這些證據,目前沒有什麼明確理由可以懷疑這套理論的可信度。 而這個理論所帶來的一個重要結論就是:在極為宏觀的尺度下,宇宙應該是均勻的。 畢竟,如果所有物質一開始都被擠壓在同一個點,然後向四面八方均勻擴散,那麼在夠大的尺度上,物質的分布看起來應該會非常平均才對。 像是恆星、星系、星系團這類局部的密集結構,其實只是存在於這個「大致均勻」的大背景之中。 我們,是否發現了某種「不該存在的東西」? 什麼是「大環」? 搖動中的宇宙原則 當理論行不通的時候 這場“巧合”背後的真相 重新繪製宇宙地圖

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