“Yes,we found water,” said Anthony Colaprete,a principal project investigator at NASA’s Ames research center in California.“We didn’t find just a little bit;we found a significant amount.”

　　Scientists hailed the discovery as a success and finding water is a huge boost for future missions.Most believe the likeliest places for water are at the poles of the moon,where there are craters(火山口)in permanent shadow.

　　Scientists hope future study of the probe’s findings could shed light on the evolution of the solar system,in the same way as an ice core sample taken from deep beneath the earth’s surface reveals data on ancient geological events.

　　The discovery of water is a result of preliminary(初步的) analysis of data from the lunar crater observation and sensing satellite (Lcross).The probe and an accompanying rocket,Centaur,were deliberately crashed into the Cabeus crater near the moon’s south pole and scientists have been studying the resulting plume(羽流) of lunar dust for the past few weeks.

　　“We’re unlocking the mysteries of our nearest neighbor and by extension the solar system.It turns out the moon harbors many secrets,and Lcross has added a new layer(层面) to our understanding,” said Michael Wargo,chief lunar scientist at NASA’s headquarters in Washington.

　　39.What’s the main idea of this passage?

　　A.It’s quite exciting that there is life on Mars.

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