《HubbleCast(哈勃在线)哈勃望远镜升空20年专题纪念》(HubbleCast_Hubble Marks 20 years of Discovery)[M4V+MP4]

《HubbleCast(哈勃在线)哈勃望远镜升空20年专题纪念》(HubbleCast_Hubble Marks 20 years of Discovery)[M4V+MP4]
  • 片  名  《HubbleCast(哈勃在线)哈勃望远镜升空20年专题纪念》(HubbleCast_Hubble Marks 20 years of Discovery)[M4V+MP4]
  • 简  介  发行时间: 2010年4月24日地区: 美国语言: 英语
  • 类  别  综艺
  • 小  类  科教节目


  • 详细介绍简介:
    HubbleCast(哈勃在线)哈勃望远镜升空20年专题纪念
    PS:HubbleCast 来自NASA在iTune上不定期发布的关于Hubble的最新信息和影像哈勃空间望远镜(Hubble Space Telescope,缩写为HST),是以天文学家爱德温·哈勃(Edwin Powell Hubble)为名,在地球轨道的望远镜。哈勃望远镜接收地面控制中心(美国马里兰州的霍普金斯大学内)的指令并将各种观测数据通过无线电传输回地球。由于它位于地球大气层之上,因此获得了地基望远镜所没有的好处——影像不受大气湍流的扰动、视相度绝佳,且无大气散射造成的背景光,还能观测会被臭氧层吸收的紫外线。于1990年发射之后,已经成为天文史上最重要的仪器。它成功弥补了地面观测的不足,帮助天文学家解决了许多天文学上的基本问题,使得人类对天文物理有更多的认识。此外,哈勃的超深空视场则是天文学家目前能获得的最深入、也是最敏锐的太空光学影像。
    Starry-Eyed Hubble Celebrates 20 Years of Awe and Discovery04.22.10
    This brand new Hubble photo is of a small portion of one of the largest seen star-birth regions in the galaxy, the Carina Nebula. Towers of cool hydrogen laced with dust rise from the wall of the nebula. The scene is reminiscent of Hubble's classic Pillars of Creation photo from 1995, but is even more striking in appearance. The image captures the top of a three-light-year-tall pillar of gas and dust that is being eaten away by the brilliant light from nearby bright stars. The pillar is also being pushed apart from within, as infant stars buried inside it fire off jets of gas that can be seen streaming from towering peaks like arrows sailing through the air. Credit: NASA, ESA, and M. Livio and the Hubble 20th Anniversary Team (STScI)
    › More versions from HubbleSite.org

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