原始文件 (672 × 870像素,文件大小:138 KB,MIME类型:image/jpeg


摘要

描述
English: This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark spots formed in carbon dioxide frost that covers the surfaces of patches of sand in the south polar region. As spring arrived this year in the martian southern hemisphere, so began the annual defrosting process. The fact that sand dunes begin to defrost earlier than other surfaces, and that the defrosting process involves the formation of spots like these, has been known since the earliest days of the MGS mission. Location near: 66.8°S, 15.7°W

Mars GloImage width: ~3 km (~1.9 mi) Illumination from: upper left

Season: Southern Spring
日期
来源 http://photojournal.jpl.nasa.gov/catalog/PIA03956
作者 NASA/JPL/Malin Space Science Systems

许可协议

Public domain 本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zhNASA版权方针页面JPL图片使用方针。)
警告:

说明

添加一行文字以描述该文件所表现的内容

此文件中描述的项目

描繪內容

文件历史

点击某个日期/时间查看对应时刻的文件。

日期/时间缩⁠略⁠图大小用户备注
当前2008年9月18日 (四) 22:272008年9月18日 (四) 22:27版本的缩略图672 × 870(138 KB)KGyST{{Information |Description={{en|1=This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark spots formed in carbon dioxide frost that covers the surfaces of patches of sand in the south polar region. As spring arrived this year in the mar

以下页面使用本文件:

全域文件用途

以下其他wiki使用此文件:

元数据