每日一图 (每日约13.30更新)
Orion never had a sword like this. As Comet C/2025 R3 (PanSTARRS) heads out of the inner Solar System, it is putting on quite a show for long exposure cameras. Currently seen toward the constellation of Orion the Hunter, the distant Orion Nebula is visible on the upper right. Comet R3 PanSTARRS is now showing two distinct tails: a short dust tail pointing toward the top of the image and a long and wavy ion tail trailing off toward the upper left. The ion tail points away from the Sun and glows blue from excited carbon monoxide. Large particles in the dust tail somewhat resist the radiation pressure that push them away from the Sun and so retain a bit of the comet's orbit. The dust tail shines by reflected sunlight. The featured image was taken a few days ago from France's Reunion Island in the southern Indian Ocean. Growing Gallery: Comet R3 PanSTARRS in 2026
最新异域文明研究活动 发起新活动
推荐阅读： (only temp appear)
投稿发表在首页
双腿残疾的我，下半生的心愿
发表于：2023-03-22 15:47:16
看了几个视频，非常担忧孤独终老
发表于：2022-10-05 17:22:25
睡梦中与女孩亲吻
发表于：2023-04-23 03:51:36
再次回忆北京五道口吃饭时遇到的女孩
发表于：2022-09-08 15:52:55
很久不做梦了，遇到短梦一则
发表于：2022-06-17 02:31:44
父亲看病医生如此对待令我寒心
发表于：2022-09-11 14:55:54
准备开工网站新模块
发表于：2022-03-04 03:45:39
看到M96星系图想到了我的理论
发表于：2022-04-15 02:47:59
今天洗澡泡衣服
发表于：2022-07-01 00:54:01
今天父亲做碴条和烙饼
发表于：2022-08-18 03:47:52
科技渴求榜 渴求
今天，又是渴求大奖
(IMP: 2700 )
一直为表弟的肾衰竭担心，异域文明请传授治疗技术
(IMP: 700 )
我的人生生存和发展基础难道是可鄙的？
(IMP: 200 )
用户，头衔，积分
User 吴鹏 has points :992300 .
ACQs :
34
CCAs:
16
ACCS:
7
User peng wu has points :48400 .
ACQs :
2
CCAs:
0
ACCS:
0
User wup has points :3800 .
ACQs :
0
CCAs:
0
ACCS:
0
User 我来自于星空 has points :1200 .
ACQs :
0
CCAs:
0
ACCS:
0