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 Science. I'm Karen Hopkin. This'll just take a minute.
该句暂无译文！
2 .Astronomers have searched far and wide for planets that are the right size and in the right place to support life.
该句暂无译文！
3 .Well, maybe they should have set their sights a little closer to home.
该句暂无译文！
4 .Because a new study suggests that there may be Earth-like planets just 13 light-years away.
该句暂无译文！
5 .The results will be published in The Astrophysical Journal.
该句暂无译文！
6 .To look for worlds that are about the same size as our own, scientists focused their attention, and the planet-seeking Kepler telescope, on red dwarves.
该句暂无译文！
7 .These stars are about a third the size of our sun, which is a plus for detecting planets,
该句暂无译文！
8 .because an Earth-size body would block more of a smaller star's light, making it easier to spot.
该句暂无译文！
9 .Looking at the red dwarves that have already been scoped out by Kepler,
该句暂无译文！
10 .the scientists discovered that 60 percent of them have planets smaller than Neptune,
该句暂无译文！
11 .and 6 percent have planets as warm and cozy as our beloved Earth.
该句暂无译文！
12 .Now, three out of every four stars in our galaxy is a red dwarf.
该句暂无译文！
13 .So if some four billion stars in our neighborhood alone shine on an Earth-like planet, our extrasolar backyard may turn be a pretty lively place.
该句暂无译文！
14 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.
该句暂无译文！