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音頻科普：你生活在一個奇怪的太陽系
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音頻科普：你生活在一個奇怪的太陽系
?Astronomers found that other star systems tend to host similarly sized exoplanets—far different from ours.天文學家們發(fā)現，其他星系往往能承載大小相似的系外行星——而這與我們生活的星系截然不同。
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撰文\播音：克里斯托弗·因塔利亞塔（Christopher Intagliata）
翻譯：陳美娟
審校：郭曉
?
The more astronomers study the heavens, the more they realize:?our solar system?is weird.?
關于星空，天文學家們研究的越多，他們越發(fā)現：我們的太陽系是怪異的。
"There are?a few things that make the solar system kind of strange." Lauren Weiss, an astrophysicist at the University of Montreal. "One of which is we have a giant planet. Only about 10 percent of sunlike stars have a giant planet. And there are probably even fewer that have?two?giant planets."
“有幾樣事情讓太陽系看起來有點奇怪。”來自蒙特利爾大學的天體物理學家Lauren Weiss這么說。“其中一條是我們太陽系有一個巨大的行星。只有10%的類日星體有巨大的行星。而有兩顆巨型行星的就更少了。”
In addition to giant Jupiter and lesser giant Saturn, we have tiny Mercury—just a bit bigger than Earth’s moon.
除了巨大的木星和稍小些的土星，太陽系還有水星——它只比繞地的月球大一些。
So if we’re weird, what does a typical solar system look like? Weiss and her team trained their telescopes on 355 star systems known to host a handful of small exoplanets. And they found that most of the planets within individual star systems tended to be similar in size.
所以，如果我們太陽系的構成是不合常理的，一個標準的太陽系應該是什么樣子的呢？Weiss與她的團隊將他們的望遠鏡對準了355個星系，這些星系已知能承載一些小型系外行星。他們發(fā)現，獨立星系中的絕大多數行星往往都有相同的大小。 ????
"So if I'm a planet, and I'm, say, two times the size of Earth, my neighbor, the next planet over, is also likely to be two times the size of Earth, give or take a little bit."
“如果我是一個星球，我有地球的兩倍大，那么住我旁邊的鄰居可能也有差不多地球的兩倍大?！?/span>
And they were strung out at similar distances from each other too…like peas in a pod, she says. Compared to that orderly array, our system looks more like, "Uh let's see, if I stick with food…I don't know…like a whole Thanksgiving dinner or something?"
這些星球一字排開，彼此間的距離也相似……就像豆莢里的豆子一樣，她說。與那種有序的排列相比，我們的星系看起來更像是，“呃讓我想想，如果我繼續(xù)用食物打比方……也許就像是感恩節(jié)的晚餐之類的吧？” ?????????????????????
The results are in?The Astronomical Journal. [Lauren M. Weiss et al.,?The California-Kepler Survey. V. Peas in a Pod: Planets in a Kepler Multi-planet System Are Similar in Size and Regularly Spaced]這項研究結果刊登在《天文學》雜志上。
As for hunting for?habitable?worlds: "If we're trying to find an Earth-sized planet in the habitable zone”—not too close to the star but not too far away either—“and we find an Earth-sized planet closer in, it might be worthwhile to continue searching for planets around that star."
在尋覓宜居的星球這點上：“如果我們想在宜居的范圍內——離恒星要既不太遠又不太近——找到一顆地球那么大的行星，并且確實在附近找到了一顆類地行星，那么那顆恒星周圍的行星值得繼續(xù)發(fā)掘?！?/span>
Because there might just be a few more peas in the pod.
因為豆莢里可能還有還有更多豆子呢。
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?Astronomers found that other star systems tend to host similarly sized exoplanets—far different from ours.天文學家們發(fā)現，其他星系往往能承載大小相似的系外行星——而這與我們生活的星系截然不同。
?
撰文\播音：克里斯托弗·因塔利亞塔（Christopher Intagliata）
翻譯：陳美娟
審校：郭曉
?
The more astronomers study the heavens, the more they realize:?our solar system?is weird.?
關于星空，天文學家們研究的越多，他們越發(fā)現：我們的太陽系是怪異的。
"There are?a few things that make the solar system kind of strange." Lauren Weiss, an astrophysicist at the University of Montreal. "One of which is we have a giant planet. Only about 10 percent of sunlike stars have a giant planet. And there are probably even fewer that have?two?giant planets."
“有幾樣事情讓太陽系看起來有點奇怪。”來自蒙特利爾大學的天體物理學家Lauren Weiss這么說。“其中一條是我們太陽系有一個巨大的行星。只有10%的類日星體有巨大的行星。而有兩顆巨型行星的就更少了。”
In addition to giant Jupiter and lesser giant Saturn, we have tiny Mercury—just a bit bigger than Earth’s moon.
除了巨大的木星和稍小些的土星，太陽系還有水星——它只比繞地的月球大一些。
So if we’re weird, what does a typical solar system look like? Weiss and her team trained their telescopes on 355 star systems known to host a handful of small exoplanets. And they found that most of the planets within individual star systems tended to be similar in size.
所以，如果我們太陽系的構成是不合常理的，一個標準的太陽系應該是什么樣子的呢？Weiss與她的團隊將他們的望遠鏡對準了355個星系，這些星系已知能承載一些小型系外行星。他們發(fā)現，獨立星系中的絕大多數行星往往都有相同的大小。 ????
"So if I'm a planet, and I'm, say, two times the size of Earth, my neighbor, the next planet over, is also likely to be two times the size of Earth, give or take a little bit."
“如果我是一個星球，我有地球的兩倍大，那么住我旁邊的鄰居可能也有差不多地球的兩倍大?！?/span>
And they were strung out at similar distances from each other too…like peas in a pod, she says. Compared to that orderly array, our system looks more like, "Uh let's see, if I stick with food…I don't know…like a whole Thanksgiving dinner or something?"
這些星球一字排開，彼此間的距離也相似……就像豆莢里的豆子一樣，她說。與那種有序的排列相比，我們的星系看起來更像是，“呃讓我想想，如果我繼續(xù)用食物打比方……也許就像是感恩節(jié)的晚餐之類的吧？” ?????????????????????
The results are in?The Astronomical Journal. [Lauren M. Weiss et al.,?The California-Kepler Survey. V. Peas in a Pod: Planets in a Kepler Multi-planet System Are Similar in Size and Regularly Spaced]這項研究結果刊登在《天文學》雜志上。
As for hunting for?habitable?worlds: "If we're trying to find an Earth-sized planet in the habitable zone”—not too close to the star but not too far away either—“and we find an Earth-sized planet closer in, it might be worthwhile to continue searching for planets around that star."
在尋覓宜居的星球這點上：“如果我們想在宜居的范圍內——離恒星要既不太遠又不太近——找到一顆地球那么大的行星，并且確實在附近找到了一顆類地行星，那么那顆恒星周圍的行星值得繼續(xù)發(fā)掘?！?/span>
Because there might just be a few more peas in the pod.
因為豆莢里可能還有還有更多豆子呢。
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