向普朗克太空望远镜发送最后指令
2013-10-29 10:55阅读：
2013.10.25
普朗克太空望远镜在用了近4.5年时间收集宇宙大爆炸的古老辐射并研究整个宇宙历史中恒星和星系的演化过程后已被关闭。
普朗克（Planck）太空望远镜在用了近4.5年时间收集宇宙大爆炸（Big
Bang）的古老辐射并研究整个宇宙历史中恒星和星系的演化过程后已被关闭。
普朗克是欧洲航天局（European Space
Agency）的一项使命，得到了美国国家航空航天局（NASA）的大力支持。
位于德国达姆施塔特（Darmstadt）的欧洲航天局操作中心的使命控制人员于10月23日向普朗克发送最后指令，标志着被一些人称为“时光机器”的使命的结束。
位于加利福尼亚州（California）帕萨迪纳（Pasadena）的美国航空航天局喷气推进实验室（Jet Propulsion
Laboratory）的美国普朗克项目科学家查理·劳伦斯（Charles
Lawrence）表示：“数据分析只进行了一部分，但我们已经了解到有关宇宙的大量数据：从银河系（Milky Way
galaxy）到可观测到的边缘，再到宇宙大爆炸后瞬息间的情形。”
普朗克于2009年发射，目的是测量宇宙大爆炸后最微弱的古老的辐射，被称为宇宙微波背景辐射（cosmic microwave
background）。这种辐射保存了宇宙诞生后大约38万年的景象，提供了最终形成今天的宇宙的最初状况的详细信息。
以上是普朗克宇宙微波背景辐射观测图的艺术构想图。
喷气推进实验室的美国普朗克项目主管乌尔夫·伊斯雷尔森（Ulf
Israelsson）表示：“普朗克是国际太空合作的典范。欧洲和美国都贡献了使该项使命成为可能的新技术，赋予了普朗克前所未有的科研能力。”
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Last Command Sent to Planck Space Telescope
24 October 2013 The Planck space telescope has been
turned off after spending nearly 4.5 years soaking up the relic
radiation from the Big Bang and studying the evolution of stars and
galaxies throughout the history of the universe.
The Planck space telescope has been turned off after spending
nearly 4.5 years soaking up the relic radiation from the Big Bang
and studying the evolution of stars and galaxies throughout the
history of the universe.
Planck is a European Space Agency mission with significant
contributions from NASA.
Mission controllers at ESA’s operations center in Darmstadt,
Germany, sent the final command to the Planck satellite October 23,
marking the end of operations for what some like to call a “time
machine.”
“We are only partway through the analysis of the data and have
already learned a huge amount about the universe, from the Milky
Way galaxy to the observable edge and beyond to the first tiny
fraction of a second after the Big Bang,” said U.S. Planck Project
Scientist Charles Lawrence of NASA’s Jet Propulsion Laboratory in
Pasadena, California.
Launched in 2009, Planck was designed to tease out the faintest
relic radiation from the Big Bang, called the cosmic microwave
background. This radiation preserves a picture of the universe as
it was about 380,000 years after its birth and provides details of
the initial conditions that led to the universe of today.
Above is a map of the cosmic microwave background with an artist’s
impression of Planck.
“Planck is a model for international cooperation in space. Both
Europe and the U.S. contributed enabling new technologies, giving
Planck unprecedented scientific capability,” said Ulf Israelsson,
the U.S. Planck project manager at JPL.
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