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毅力:美国宇航局 2020 年火星任务的漫游车有什么特别之处

美国航空航天局的 有雄心 火星 使命 三月2020 于30年2020月XNUMX日成功推出。 毅力 是漫游者的名字。  

主要任务 毅力 是寻找古代生命的迹象并收集岩石和土壤样本,以便可能返回地球。 

三月 is cold, dry planet today. However, it was once very different with wet conditions billions of years ago. The wet condition had lasted long enough to potentially support the development of microbial life. This 三月 mission is significant and ambitious from this point. 毅力 is designed to better understand the geology of 三月 and look for signs of ancient life particularly in special rocks known to preserve signs of life over time.

火星探测器, Perseverance will collect and store a set of rock and soil samples in about 30 tubes. In future, some other spacecraft will pick up and bring these samples to Earth by return flight possibly by 2031.When that happens, the rocks will become the first samples ever to have brought directly from 三月 to Earth (samples from other celestial bodies do fall on earth occasionally in the form of meteorites though).  So far, the scientists have collected samples from 月亮、小行星、太阳风和 彗星 Wild 2 但不是来自任何星球。  

它还将测试新技术,以有利于未来的机器人和人类探索 三月. 这包括用于避免危险的新自主导航系统,这将使漫游车在具有挑战性的地形中行驶得更快,以及一组用于在着陆期间收集数据的传感器。  

发射后不久,由于技术原因,飞船进入行星际轨道后进入安全模式状态。 在此期间,除基本系统外,所有系统都被关闭。  

Now, the spacecraft has exited safe mode, returned to nominal flight operations and successfully cruising to 三月. The rover is expected to land on Jezero Crater, 三月 on February 18, 2021.The trip to 三月 will take about seven months and about 300 million miles. The mission duration is at least one 三月 year (about 687 Earth days).  

*** 

Sumber:  

NASA 2020. 火星 2020 任务:毅力漫游者。 可在线获取 https://mars.nasa.gov/mars2020/ 31 年 2020 月 XNUMX 日访问。  

赛欧团队
赛欧团队https://www.ScientificEuropean.co.uk
科学欧洲® | SCIEU.com | 科学的重大进步。 对人类的影响。 鼓舞人心。

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