火星探索新发现：科学家首次发现火星液态水湖

预约免费课程

预约免费试听课程

预约报名领取礼包

当前位置：首页 > 时文闯关 > 火星探索新发现：科学家首次发现火星液态水湖

中等

难度

新闻报道

时文类型

现代科技

时文话题

高中一年级

适合年级

关注公众号、微信做时文

时文摘要

科学家称在火星上首次发现了液态水湖，这项新发现让他们更加相信火星上有生命存在。

时文录音

FLASH 需要跟新播放音频您需要升级 Flash 插件.

闯关习题描述一下时文录音

For the first time, scientists have found a lake of salty water under the Martian ice, a study released Wednesday said. The presence of water under the Martian polar ice has long been suspected but not seen until now. The discovery raises the possibility of finding life on the Red Planet. “Without water, no form of life as we know could exist,” said Anja Diez of the Norwegian Polar Institute.
Astronomers used radar data from the orbiting European spacecraft Mars Express to find the water. They spent at least two years checking over the data to make sure they had found water. “I really have no other explanation,” said study lead author Roberto Orosei of Italy’s National Institute of Astrophysics in Bologna. “This is just one small study area; it is an exciting result to think there could be more of these underground water elsewhere, yet to be discovered.”
Although evidence of water was obvious on the planet’s surface in the form of vast dried-out river valley networks, Mars’ climate does not allow for water on the surface today. The discovery could offer fresh clues about how Earth’s neighbor so greatly changed billions of years ago from a warmer, wetter world to its freeze-dried state today.
Cassie Stuurman, a geophysicist at the University of Texas, said that “If these researchers are right, this is the first time that we’ve found evidence of a large water body on the Mars. We are hopeful that there will be new discoveries.” The area is similar to that of lakes found beneath the Antarctic and Greenland ice sheets on the Earth. “We are thrilled at the discovery, which will contribute to our understanding of the evolution of Mars, the history of water on our neighbor planet,” said Dmitri Titov of the European Space Agency.