教学论文】[教育综合][语文][数学][英语][政治][物理][化学][历史][地理][生物][音乐][美术][体育][信息][德育论文][教育法规][课程改革][家长频道][教育管理][教程指导][班主任]
经济论文】[金融论文][投资论文][财政论文][西经论文][税收论文][国际贸易][计量经济][国民经济][证券投资][保险信托][经济理论][房地产论文]
理工论文】[工程论文][自动化论文][土建水利论文][交通运输论文][机械制造论文][生命环境论文][化学与化工论文][电子通信网络论文][石油与能源动力论文][信息技术论文]
管理论文】[会计论文][财务论文][电子商务论文][人力资源论文][市场营销论文][企业管理论文][信息管理论文][旅游管理论文][工商管理论文][公共管理论文][物流管理论文]
法律论文】[民法论文][刑法论文][诉讼法论文][行政法论文][国际法论文][商法论文][经济法论文][法史学论文][法理学论文][劳动保障][司法制度][国家法宪法][土地资源环境法]
行政论文】[八荣八耻][社工论文][中国政治论文][国际政治论文][管理科学论文][政治理论论文][哲学理论论文][三个代表论文][思想政治教育论文][国家行政管理论文]
艺术论文】[音乐论文][舞蹈论文][戏剧论文][美术论文][艺术理论论文][电视艺术论文][电影艺术论文]
医学论文】[药学论文][护理学论文][基础医学论文][临床医学论文][特种医学论文][医药卫生论文][医学论文写作方法]
文史论文】[考古论文][语法论文][中国史论文][世界史论文][文字学论文][社会学论文][中国文学论文][世界文学论文][文学理论论文][文艺美学论文][新闻传媒学论文][文学评论]
农科论文】[农科论文][环境工程][林学论文]【英语论文】[外语翻译][语言文化][英美文学][学术英语论文][科技英语论文][商务英语论文]
您现在的位置: 3edu教育网 >> 免费论文 >> 英语论文 >> 科技英语论文 >> 正文    3edu教育网,教育第三方,完全免费,天天更新!

太阳系里存在第九颗行星

分类:科技英语论文   更新:2016/2/2   来源:本站原创

    Researchers are now pretty certain there's a ninth planet in the solar system.

    研究人员如今相当确定,太阳系中存在着第九颗行星。

    Konstantin Batygin and Mike Brown, two CalTech scientists, say the new planet is about 10 times the mass of Earth and has an atmosphere of hydrogen and helium. Science magazine reports that the mysterious "Planet X" moves in a distant orbit beyond Neptune1.

    The researchers haven't observed Planet X itself, but believe it exists because of the unique configuration2 of six objects when they come closest to the sun, according to Science.

    The scientists say that there's a 0.007 percent probability that the configuration is due to chance, and instead are confident it's a ninth planet. They believe they will observe the planet with a telescope within five years, according to The Associated Press.

    So where did this possible planet come from? Scientists have previously3 speculated that there could be a missing planet in our solar system, with some theorizing that a collision caused it to be ejected out of our system some 4 billion years ago. That collision may have been with Jupiter.

    "Although we were initially4 quite skeptical5 that this planet could exist, as we continued to investigate its orbit and what it would mean for the outer solar system, we become increasingly convinced that it is out there," Batygin said in a statement. "There is solid evidence that the solar system's planetary census6 is incomplete."

    Batygin and Brown described their findings in The Astronomical7 Journal on Wednesday.

科技英语论文相关子栏目
| 设为首页 | 加入收藏 | 联系我们 | 版权申明 | 隐私策略 | 关于我们 | 手机3edu | 返回顶部 |