A new LSU research study suggests clustered pits in the Pioneer Terra region on Pluto are related to the dwarf planet's suprising robust atmosphere. The pits resemble gas pockmarks on Earth where methane seeps from the subsurface. These pits may supply atmospheric methane on Pluto.
在泱泱大国领航者心中，“人民”二字的分量永远最重。扶贫始终是习近平总书记工作的一个重要内容，花的精力最多。
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Ella Watkins-Dulaney for Asimov Press.。业内人士推荐WPS下载最新地址作为进阶阅读
Фото: Bilal Hussein / AP