原文已被隐藏，你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American's 60-Second Space. I'm John Matson. Got a minute?
该句暂无译文！
2 .The descent and landing were called "seven minutes of terror."
该句暂无译文！
3 .Since that white-knuckle event, NASA's Curiosity rover has had a little longer than half-a-Martian-year of quiet wonder.
该句暂无译文！
4 .But in Earth years, it's an anniversary:
该句暂无译文！
5 .Curiosity touched down on Mars early on August 6th, Earth Eastern time, 2012,
该句暂无译文！
6 .setting off a jubilant celebration at NASA's Jet Propulsion Laboratory.
该句暂无译文！
7 .Since then, the plutonium-powered robot has logged more than one kilometer of driving on Mars.
该句暂无译文！
8 .It has photographed what looks to be an ancient, gravely streambed.
该句暂无译文！
9 .And it has drilled into sedimentary rocks and consumed the powdery extract to analyze its composition.
该句暂无译文！
10 .Those rocks bear traces of an ancient wet environment where "conditions once were favorable for life," according to project scientist John Grotzinger.
该句暂无译文！
11 .The rover has even gulped a bit of Martian air to measure its composition.
该句暂无译文！
12 .As of yet, Curiosity has not detected any methane,
该句暂无译文！
13 .its presence might point to ongoing biological activity on the Red Planet.
该句暂无译文！
14 .But the evidence gathered indicates that Mars may well have been habitable at some point in its history.
该句暂无译文！
15 .Stay tuned for Earth year 2, as Curiosity keeps rolling along.
该句暂无译文！
16 .Thanks for the minute, for Scientific American's 60-Second Space. I'm John Matson.
该句暂无译文！