人类冲出太阳系: 旅行者1号已达太阳系边缘(图)-宋世鹏

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人类冲出太阳系: 旅行者1号已达太阳系边缘(图)

时间：2012-06-17 18:37:35 作者：转载　来源：转载　查看：120017

毫不夸张地说，这即便不是人类最伟大的成就，也应该是其中之一。

正如我们所说的，这样一个人类智慧设计，人类工具建造并发射自我们自己星球的人造飞行器正驶向太阳系的最远端，并且将成为第一个驶出太阳系进入星际空间的人造飞行器。

由美国宇航局建造并于1977年发射升空的旅行者1号已经在太空飞行了35年，与地球的距离依然在稳定地增加，目前距离地球17970000000公里或11100000000英里远，并继续以每秒10公里的速度前进。

上周有迹象显示旅行者1号正离开日球层（heliosphere），即太阳系的边缘部分。

旅行者1号仍能探测到宇宙射线电子强度的峰值，这让科学家认为它仍处于日鞘（heliosheath）范围内，即太阳系的最外缘。

自1977年起旅行者号探测器即朝着太阳系边缘行进，科学家估计它的电量足够维持到2020年。

大西洋月刊（The Atlantic）报道旅行者1号正经历热量的考验，它和地球间的无线电通讯仍维持正常，信号需要16个小时才能到达地球。

旅行者1号在它附近探测到更多高能粒子，这意味着它已处于日鞘最边缘，在那里类似泡沫的物质包裹着太阳系，以保护我们免于外太空宇宙风的侵袭。

旅行者1号探测器于2004年进入日球层。

按照大西洋月刊的报道，特定的宇宙射线很难有机会进入日球层，但是上个月，这种慢粒子的总和大概增加了10%。

这不一定说明我们已经越过了日球层，但这意味着我们离日球层的边缘越来越近了。

过去一年，旅行者1号用它携带的设备探测了一个新区域。它看起来像是宇宙中的”赤道无风带“，时速100万英里的太阳风在那里大为减弱。

旅行者1号目前正在探测首次”星际风“的痕迹，那是最终到达太阳系边缘的标志。

旅行者号科学家爱德华·斯通（Edward Stone）告诉大西洋月刊：“这是有史以来第一次有航天器到达那里。”

“我们每天都会查看数据以跟踪它的行进情况……我们每天有数小时全神贯注于这些飞行器。当你看到前人所未见的东西时，从科学的视角来说那真是令人兴奋。”

“由于以前从未到达该区域，我们还不清楚它看起来像什么，要完全了解”它“还有点困难。”

“但这正是令人兴奋所在。”

很难定义旅行者号离开太阳系的准确时间，没有一个明确的分割点，周围的微粒会变得稀疏，但是不会有一道墙或一条分界线那样的确切标志。

旅行者1号在外太空将会发现什么？除了依然围绕太阳轨道运行的远程彗星外，那里接近绝对真空。

当旅行者1号最终穿越太阳系范围时，科学家期望观测到一系列标志性迹象，包括磁场方向和“风”类型的变化。

相比太阳风，星际风更慢、更冷并且更为密集。

发射于1977年的双胞胎旅行者1号和旅行者2号已经造访了包括木星、土星、天王星和海王星在内的远日行星。

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人类冲出太阳系: 旅行者1号已达太阳系边缘(图)

Консультации юриста по уголовным делам в Москве: как обеспечить успешную защиту клиента на суде и получить положительные отзывы

Адвокат по уголовным делам в Москве

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Что включает в себя работа адвоката?

Почему выбирают нас

Как найти адвоката?