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Pioneer Plaques
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图注: The Pioneer 10 and 11 spacecraft are the first human-made objects to leave the solar system and venture into interstellar space. To inform potentially intelligent species about our existence, they both carry small metal plaques identifying their time, place of origin and information about their builders. They provide the location of our solar system in the Milky Way by depicting the Solar System's position relative to 14 pulsars, with radiating lines that include information about their frequencies. A model of a hydrogen atom undergoing one particular atomic transition is depicted. The wavelength and frequency of this transition are used to express sizes and frequencies of the other items shown in the plaque. A more detailed view of Earth's position in the solar system, with the spacecraft's trajectory moving away from Earth, passing Mars and Jupiter is displayed at the bottom. The plaque also depicts a naked man and woman alongside the spacecraft to provide a sense of scale. The man’s hand is raised as a friendly gesture.
The 6-inch by 9-inch gold-anodized aluminum plate has the design engraved on it. It was attached to the support struts of the spacecraft's antenna to try to to protect it from erosion by any interstellar dust the spacecraft may encounter on its journey. Designed by Carl Sagan and Frank Drake, with artwork by Linda Salzman Sagan, these plaques are meant to communicate the origin of the spacecraft to any extraterrestrial life that might encounter them.
While Pioneer 10 is on a course towards the star Aldebaran in the Taurus constellation, which will take about two million years to reach, Pioneer 11 is heading in a different direction towards the constellation of Aquila. It will take approximately four million years to pass close to some of the constellation’s stars.
来源: NASA Ames
来源链接
词汇表:
外星智能
分类:
天文学与社会
, 系外行星与天体生物学
, 太空探索
授权许可: 公共领域 公共领域 图标
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5.94 MB)
阿雷西博信息
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图注: 这张图片展示的是名为"阿雷西博信息"的星际无线电讯号示意图。在这幅图像中,不同部分以色彩区分。该信息于1974年11月16日从波多黎各的阿雷西博射电望远镜发射。在当时,这是全球最大的射电望远镜。讯号目的地是武仙座的球状星团M13。它是它这一类别中最明亮的星团之一,包含约50万颗恒星,距离地球约2.5万光年。因为M13恒星密集度高,也就是说讯号能抵达更多恒星及可能存在的行星,科学家选择了它作为目标。此外,在发射当时当地可见的球状星团中,M13属于相对较近的天体。
阿雷西博信息是一次象征性活动,旨在证明人类具备向星际发送讯号的能力。这条包含1679个数据位(该数字是两个质数的乘积)的讯号,经二维矩阵排列后形成了图示画面。信息由七个部分组成,呈现了DNA双螺旋结构、人类形态、地球及太阳系的相关数据。讯号内容由康奈尔大学与阿雷西博天文台的科学家团队共同设计。
来源: Arne Nordmann(维基共享资源用户 norro)
来源链接
词汇表:
外星智能
分类:
系外行星与天体生物学
授权许可: 知识共享许可协议 Attribution-ShareAlike 3.0 Unported 知识共享许可协议 Attribution-ShareAlike 3.0 Unported 图标
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61.85 kB)
Identikit of an alien astroEDU 教育活动(链接至 astroEDU 网站) 描述: Let's build the identikit of an alien living on a distant exoplanet!
词汇表:
外星智能 , 地外生命
分类:
系外行星与天体生物学
, 地球
年龄段:
8-10
, 10-12
, 12-14
受教育等级:
初中
, Primary
学习领域:
辩论
, 引导式发现学习
, 以观察为主
, 结构化探究式学习
费用:
低成本
时间跨度:
3 小时
组别大小:
小组
技能:
分析和解读数据
, 提出问题
, 构建解释
作者: Sandro Bardelli,Elena Zucca,Angelo Adamo
授权许可: 知识共享许可协议 署名 4.0 国际 (CC BY 4.0) 知识共享许可协议 署名 4.0 国际 (CC BY 4.0) 图标
Design Your Alien astroEDU 教育活动(链接至 astroEDU 网站) 描述: Design an alien life form suited for an extra-terrestrial world.
词汇表:
地球 , 宜居带 , 行星
分类:
系外行星与天体生物学
标签:
Alien
, Art
, Creativity
, Environment
, Extra-terrestrial
, Hands-on
, Life
年龄段:
8-10
, 10-12
受教育等级:
Primary
, 中学
作者: Sarah Roberts
授权许可: 知识共享许可协议 署名 4.0 国际 (CC BY 4.0) 知识共享许可协议 署名 4.0 国际 (CC BY 4.0) 图标
