彗尾

NEOWISE彗星节理分明的彗尾

作者： NASA中文 / 2020年7月22日

2020年7月22日 The Structured Tails of Comet NEOWISE Image Credit & Copyright: Zixuan Lin (Beijing Normal U.) Explanation: What is creating the structure in Comet NEOWISE’s tails? Of the two tails evident, the blue ion tail on the left points directly away from the Sun and is pushed out by th […]

天文·每日一图

蒸发中的丘泽彗星

作者： NASA中文 / 2020年1月28日

2020 January 27 Comet CG Evaporates Image Credit & License: ESA, Rosetta, NAVCAM Explanation: Where do comet tails come from? There are no obvious places on the nuclei of comets from which the jets that create comet tails emanate. One of the best images of emerging jets is shown in the featured