新闻 > 国际
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China

“新疆界”下个目标为彗星与土卫六 期望上星体取样

2017-12-25 07:30:27   光明网

资助新概念研究 期望上星体取样

“新疆界”下一个目标选定彗星和土卫六

科技日报北京12月24日电(记者房琳琳)美国国家航空航天局(NASA)近日宣布,“新疆界”计划的第四个深空探测项目,将资助简称为“凯撒”和“蜻蜓”的两个概念研究,分别探讨在彗星67P/丘留莫夫—格拉西缅科上进行生物学探测并取样返回,以及探索土卫六地下海洋的宜居程度。

据介绍,“凯撒”计划从彗星核取样,然后送回地球进行分析,以确定它的起源和历史。此前,欧空局“罗塞塔”号彗星探测器曾成功到访,“菲莱”着陆器也成功投放,成绩斐然。“蜻蜓”则是一个无人机旋翼飞行器,拟在土卫六数十处地点探索有机化学成分和宜居程度,其表层下被认为有具备生命存活条件的海洋世界。

按计划,NASA将资助这两个方案在未来一年内进行概念研究,2019年春,选择其中一个方案进入研制阶段,并最终在2025年左右发射,项目总成本不超过8.5亿美元。

NASA下一步探索太阳系的新项目,曾收到12个提案,包括六大任务主题,分别是彗星表面取样返回、月球南极艾特肯盆地取样返回、探索土卫六或土卫二水世界、土星探测、木星特洛伊小行星群探测,以及金星内层探测等。

此次除“凯撒”和“蜻蜓”外,NASA还宣布,“土星生命特征和可居住性”和“金星原位成分调查”两个方案也将获得技术发展资金支持。NASA行星科学处处长吉姆·格林说:“之所以选定这两项任务,只因其能带动顶尖的行星科学研究。”

“新疆界”计划已经实施了三个任务,其一是2006年发射的“新视野”号探测器,它于2015年飞掠过冥王星,目前正飞向太阳系边缘柯伊伯带外层的目标天体;其二是2011年发射的“朱诺”号木星探测器,已在2016年进入木星轨道;其三是去年发射的“奥西里斯-REx”探测器,将飞到贝努小行星采样并返回地球。

展开全文
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China

热点新闻

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China
点击查看更多
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20171225/31866285.html
Server: cms-8-252
Date: 2024/11/17 18:36:20

Powered by China
China