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康乃狄克州紐哈芬市 ─ 上週數家媒體報導一篇論文，論文假設在眾多可能性當中，圍繞在恆星週圍的太空殘骸是甚麼。
雜誌the Atlantic報導，在這篇投稿於英國皇家天文學會月刊的論文中，耶魯大學博士後學者Tabetha Boyajian，帶領一群科學家研究並推測太空殘骸可能是小行星帶或是彗星。但是其他人則相信太空殘骸可能是宇宙巨型結構體。
英國獨立報報導，一個熱門解釋是，太空殘骸可能是一個戴森球體結構 ─ 本質上是一種包覆在恆星之外用來吸收能量的巨型結構體。
根據雜誌 All About Space報導，這種假想的巨大結構體如同扮演發電廠的功能, 擷取圍繞在星系間的恆星釋放的能量，並像太陽能面板一樣從太陽這樣的星體中收取能量。另外一種假設是，太空殘骸這種結構體可以是一大群、數以千計的衛星型態結構，彼此互相連接並把能量送往中心點。
根據雜誌 All About Space報導，這種概念近似於在太空的太陽能基地，在地球跟月球之間佈署一艘巨大的太空船收集太陽的能量然後傳輸到地球。
根據英國獨立報報導，弗里曼·戴森, 這位在1960年提出這個戴森球體結構而出名的原創者，已經試圖遠離自己的理論。然而這個概念依然使用在科幻小說，漫畫或甚至電視上。
英文原文：
NEW HAVEN, CONNECTICUT — Last week several media outlets covered a research paper speculating, among other possibilities, what debris surrounding a distant star may be.
In the paper submitted to the Monthly Notices of the Royal Astronomical Society, a team of scientists led by Yale postdoctoral fellow Tabetha Boyajian, researchers speculate the debris may be an asteroid belt or comets, the Atlantic reports. However, others believe the debris could be extraterrestrial megastructures.
One popular idea of what the space debris might be is a Dyson Sphere — an energy-absorbing megastructure that envelopes a star, reports the Independent.
According to All About Space, this hypothetical megastructure functions as a power station, absorbing the star’s energy output and eventually energy from the surrounding galaxy, harnessing power from the sun in a similar fashion a solar panel. Another idea is that the structure may be a swarm of thousands of satellites tethered together, collecting energy and sending it to a central location.
This is similar to the notion of space-based solar power (SBSP), where a gigantic spacecraft placed between the earth and the moon would collect energy from the sun and transmit it to earth, reports All About Space.
According to the Independent, Freeman Dyson, the man who popularized the Dyson sphere concept in 1960, has sought to distance himself from the theory. However, that hasn’t stopped the concept from being widely used in science fiction, comics and television.
