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SSS 2011-09-23

时间:2011-10-07 06:23:31

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(单词翻译)

 This is Scientific American's 60-Second Science. I'm John Matson. Got a minute?

 
Out in space, NASA's Kepler mission keeps watch on more than 150,000 stars. The telescope's job is to see if those stars dim ever so slightly—because of the presence of an orbiting planet. Kepler has already found more than 20 distant worlds that way.
 
The problem is, Kepler collects so much data that researchers can't comb through it all to see what's really a planet and what's something else blocking a star's light. So they rely on algorithms to ID the most promising1 signals to follow up. 
 
But the human brain is pretty good at pattern recognition too, and may sometimes beat the algorithms. That's the idea behind the Planet Hunters project, a Web site where anybody can dig into Kepler data to look for exoplanets.
 
The effort is paying off. Citizen scientists have spotted2 two blips in the data that are almost certainly planets. A possible third planetary system, which is now being checked out, may contain multiple worlds. Six Planet Hunters users are listed as co-authors on a forthcoming study announcing the findings in the Monthly Notices of the Royal Astronomical3 Society.
 
So go to planethunters.org—and help discover a new world.

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1 promising BkQzsk     
adj.有希望的,有前途的
参考例句:
  • The results of the experiments are very promising.实验的结果充满了希望。
  • We're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。
2 spotted 7FEyj     
adj.有斑点的,斑纹的,弄污了的
参考例句:
  • The milkman selected the spotted cows,from among a herd of two hundred.牛奶商从一群200头牛中选出有斑点的牛。
  • Sam's shop stocks short spotted socks.山姆的商店屯积了有斑点的短袜。
3 astronomical keTyO     
adj.天文学的,(数字)极大的
参考例句:
  • He was an expert on ancient Chinese astronomical literature.他是研究中国古代天文学文献的专家。
  • Houses in the village are selling for astronomical prices.乡村的房价正在飙升。

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