File:Comet on 15 May 2016 ESA378524.jpg

原始文件 (1,843 × 975像素,文件大小:947 KB,MIME类型:image/jpeg


摘要

描述
English: Two-frame enhanced image taken on 15 May 2016 by Rosetta’s navigation camera, some 9.9 km from the centre of the nucleus of Comet 67P/Churyumov–Gerasimenko. The scale at the surface is about 0.8 m/pixel and the image is about 1.5 km across.

Part of the small comet lobe is visible on the right and a portion of the large lobe on the left. These observations were performed in a three-week period during which Rosetta flew very close to the nucleus to search for xenon, an important tracer of the early Solar System’s composition. The blend of xenon found at the comet closely resembles the primordial mixture that scientists believe was brought to our planet during the early stages of Solar System formation. These measurements suggest that comets contributed about a fifth of the xenon in Earth’s ancient atmosphere.

More about this discovery:Rosetta finds comet connection to Earth’s atmosphere
日期
来源 http://www.esa.int/spaceinimages/Images/2017/06/Comet_on_15_May_2016
作者 European Space Agency
授权
(二次使用本文件)
ESA/Rosetta/NavCam,CC BY-SA 3.0 IGO
Title
InfoField
Comet on 15 May 2016
Mission
InfoField
Rosetta
Activity
InfoField
Space Science

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当前2017年6月14日 (三) 18:012017年6月14日 (三) 18:01版本的缩略图1,843 × 975(947 KB)European Space Agency, Id 378524, http://www.esa.int/spaceinimages/Images/2017/06/Comet_on_15_May_2016, User:Fæ/Project_list/ESA

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