評論
打印
Gliese 581 D and E are the planets I wanna focus on now.
Gliese 581 D和E是我現在想集中講的行星。
See, in 2009, a group of researchers made an announcement: these two exoplanets, Gliese 581 D and e do have some earth-like qualities.
在2009年，一群研究人員發布通告稱這兩個外星星球，Gliese 581 D和E確實有一些類地特質。
Gliese 581 D had actually been discovered a couple of years earlier.
Gliese 581 D實際上是早幾年發現的。
And when its orbit was originally calculated it was thought to be too far away from its host star to be warm enough to support a liquid ocean, let alone carbon-based life.
當最初計算它的軌道時，他們認為它離它的寄主星太遠了，沒有足夠的溫度支持一個液態的海洋，更不用說碳基生命了。
But then its orbit was recalculated and now we see that Gliese 581 D is within its host’s habitable zone.
但是稍后他們重新計算了它的軌道，而我們現在可以看到Gliese 581 D位于它的寄主星的適居帶之內。
Student: So it might have an ocean?
學生：所以它可能有海洋？
Professor: Well, conceivably. See, Gliese 581 D weighs 7 times what Earth weighs and it’s unlikely that it’s made entirely of rocks because it’s so massive.
教授：猜測是這樣。你看，Gliese 581 D比地球重7倍，不太可能完全都是由巖石組成的，因為它體積太大了。
The researchers studying it said that it could have a rocky core, an ice layer, a large deep ocean and an atmosphere.
研究它的研究人員說它可能有一個巖石的地心、一個冰層、一個很大很深的海洋以及大氣層。
