翻译中文
PASADENA,Calif.--NASA'sVoyager1spacecraftofficiallyisthefirsthuman-madeobjecttoventur...
PASADENA, Calif. -- NASA's Voyager 1 spacecraft officially is the first human-
made object to venture into interstellar space. The 36-year-old probe is about
12 billion miles (19 billion kilometers) from our sun.
New and unexpected data indicate Voyager 1 has been traveling for about one
year through plasma, or ionized gas, present in the space between stars.
Voyager is in a transitional region immediately outside the solar bubble, where
some effects from our sun are still evident. A report on the analysis of this new
data, an effort led by Don Gurnett and the plasma wave science team at the
University of Iowa, Iowa City, is published in Thursday's edition of the journal
Science.
"Now that we have new, key data, we believe this is mankind's historic leap into
interstellar space," said Ed Stone, Voyager project scientist based at the
California Institute of Technology, Pasadena. "The Voyager team needed time
to analyze those observations and make sense of them. But we can now answer
the question we've all been asking -- 'Are we there yet?' Yes, we are."
Voyager 1 first detected the increased pressure of interstellar space on the
heliosphere, the bubble of charged particles surrounding the sun that reaches
far beyond the outer planets, in 2004. Scientists then ramped up their search for
evidence of the spacecraft's interstellar arrival, knowing the data analysis and
interpretation could take months or years.
Voyager 1 does not have a working plasma sensor, so scientists needed a
different way to measure the spacecraft's plasma environment to make a
definitive determination of its location. A coronal mass ejection, or a massive
burst of solar wind and magnetic fields, that erupted from the sun in March
2012 provided scientists the data they needed. When this unexpected gift from
the sun eventually arrived at Voyager 1's location 13 months later, in April 2013,
the plasma around the spacecraft began to vibrate like a violin string. On April
9, Voyager 1's plasma wave instrument detected the movement. The pitch of
the oscillations helped scientists determine the density of the plasma. The
particular oscillations meant the spacecraft was bathed in plasma more than 40
times denser than what they had encountered in the outer layer of the
heliosphere. Density of this sort is to be expected in interstellar space.
The plasma wave science team reviewed its data and found an earlier, fainter
set of oscillations in October and November 2012. Through extrapolation of
measured plasma densities from both events, the team determined Voyager 1
first entered interstellar space in August 2012. 展开
made object to venture into interstellar space. The 36-year-old probe is about
12 billion miles (19 billion kilometers) from our sun.
New and unexpected data indicate Voyager 1 has been traveling for about one
year through plasma, or ionized gas, present in the space between stars.
Voyager is in a transitional region immediately outside the solar bubble, where
some effects from our sun are still evident. A report on the analysis of this new
data, an effort led by Don Gurnett and the plasma wave science team at the
University of Iowa, Iowa City, is published in Thursday's edition of the journal
Science.
"Now that we have new, key data, we believe this is mankind's historic leap into
interstellar space," said Ed Stone, Voyager project scientist based at the
California Institute of Technology, Pasadena. "The Voyager team needed time
to analyze those observations and make sense of them. But we can now answer
the question we've all been asking -- 'Are we there yet?' Yes, we are."
Voyager 1 first detected the increased pressure of interstellar space on the
heliosphere, the bubble of charged particles surrounding the sun that reaches
far beyond the outer planets, in 2004. Scientists then ramped up their search for
evidence of the spacecraft's interstellar arrival, knowing the data analysis and
interpretation could take months or years.
Voyager 1 does not have a working plasma sensor, so scientists needed a
different way to measure the spacecraft's plasma environment to make a
definitive determination of its location. A coronal mass ejection, or a massive
burst of solar wind and magnetic fields, that erupted from the sun in March
2012 provided scientists the data they needed. When this unexpected gift from
the sun eventually arrived at Voyager 1's location 13 months later, in April 2013,
the plasma around the spacecraft began to vibrate like a violin string. On April
9, Voyager 1's plasma wave instrument detected the movement. The pitch of
the oscillations helped scientists determine the density of the plasma. The
particular oscillations meant the spacecraft was bathed in plasma more than 40
times denser than what they had encountered in the outer layer of the
heliosphere. Density of this sort is to be expected in interstellar space.
The plasma wave science team reviewed its data and found an earlier, fainter
set of oscillations in October and November 2012. Through extrapolation of
measured plasma densities from both events, the team determined Voyager 1
first entered interstellar space in August 2012. 展开
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帕萨迪纳，加利福尼亚州，美国宇航局的旅行者1号是第一个正式的spacecraft人
制造对象的风险进入星际空间。在36岁的探针是什么
12英里（19亿亿公里），从我们的太阳。
数据表明，新的和意外的旅行者1号已在约一个行波
岁的等离子或气通，去离子之间的空间里，明星。
旅行者在过渡区是太阳在外面立即泡沫
一些来自我们的太阳的影响仍然是启封。在这一新的分析报告
一种LED工作的日期，由唐gurnett和等离子波科学团队“.
美国爱荷华大学，爱荷华市，是一家在星期四发表的杂志版
的科学。
“现在我们有一个新的关键数据，我们相信，人类的历史将是一个飞跃
星际空间，说：”项目科学家Ed Stone，基于美国旅行者
帕萨迪纳市加州理工学院，。。。。。。。”团队需要的时间旅行者
分析观察到的那些，这使他们的意义。但现在我们可以回答
“我们已经要求所有的问题了——“我们还存在吗？”是的，我们是。。。。。。。”
旅行者1号的检测压力的增加，第一院在星际空间
带电粒子heliosphere泡泡），是为周围的太阳
远的外行星之外，在2004年。科学家们然后检查他们的搜索ramped
《星际之spacecraft’s Arrival，熟悉数据分析和
解释可以以月或年。
旅行者1号有一个等离子体传感器不工作，科学家们需要在操作系统
不同的方式来衡量的spacecraft’s，使该等离子体环境
测定其明确的定位。日冕喷射质量，或大规模的
太阳风和磁场脉冲），这是从太阳爆发中。
科学家们提供了他们需要的数据，2012年。当从这个意外的礼品
太阳eventually在旅行者1号的位置到了13个月后，在2013年4月。
该等离子体在spacecraft开始到vibrate像小提琴字符串。在线4月
9，旅行者1号’s的等离子体波仪器检测的运动。俯仰）
oscillations帮助科学家确定的等离子体密度。The
特别是在spacecraft bathed oscillations意味着血浆中超过40
他们所遇到的denser时代有比在外层的
heliosphere。这是排序的密度是在星际空间的预期。
等离子波科学团队发现了一种早期和它的日期，fainter
在十月和十一月的一组oscillations 2012。通过extrapolation of
从等离子体密度的测量两个事件，确定团队旅行者1号
在2012年8月第一次进入星际空间。
制造对象的风险进入星际空间。在36岁的探针是什么
12英里（19亿亿公里），从我们的太阳。
数据表明，新的和意外的旅行者1号已在约一个行波
岁的等离子或气通，去离子之间的空间里，明星。
旅行者在过渡区是太阳在外面立即泡沫
一些来自我们的太阳的影响仍然是启封。在这一新的分析报告
一种LED工作的日期，由唐gurnett和等离子波科学团队“.
美国爱荷华大学，爱荷华市，是一家在星期四发表的杂志版
的科学。
“现在我们有一个新的关键数据，我们相信，人类的历史将是一个飞跃
星际空间，说：”项目科学家Ed Stone，基于美国旅行者
帕萨迪纳市加州理工学院，。。。。。。。”团队需要的时间旅行者
分析观察到的那些，这使他们的意义。但现在我们可以回答
“我们已经要求所有的问题了——“我们还存在吗？”是的，我们是。。。。。。。”
旅行者1号的检测压力的增加，第一院在星际空间
带电粒子heliosphere泡泡），是为周围的太阳
远的外行星之外，在2004年。科学家们然后检查他们的搜索ramped
《星际之spacecraft’s Arrival，熟悉数据分析和
解释可以以月或年。
旅行者1号有一个等离子体传感器不工作，科学家们需要在操作系统
不同的方式来衡量的spacecraft’s，使该等离子体环境
测定其明确的定位。日冕喷射质量，或大规模的
太阳风和磁场脉冲），这是从太阳爆发中。
科学家们提供了他们需要的数据，2012年。当从这个意外的礼品
太阳eventually在旅行者1号的位置到了13个月后，在2013年4月。
该等离子体在spacecraft开始到vibrate像小提琴字符串。在线4月
9，旅行者1号’s的等离子体波仪器检测的运动。俯仰）
oscillations帮助科学家确定的等离子体密度。The
特别是在spacecraft bathed oscillations意味着血浆中超过40
他们所遇到的denser时代有比在外层的
heliosphere。这是排序的密度是在星际空间的预期。
等离子波科学团队发现了一种早期和它的日期，fainter
在十月和十一月的一组oscillations 2012。通过extrapolation of
从等离子体密度的测量两个事件，确定团队旅行者1号
在2012年8月第一次进入星际空间。
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