每日一图 (每日约13.30更新)
Awkward and angular looking, Apollo 17's lunar module Challenger was designed for flight in the near vacuum of space. Digitally enhanced and reprocessed, this picture taken from Apollo 17's command module America shows Challenger's ascent stage in lunar orbit. Small reaction control thrusters are at the sides of the moonship with the bell of the ascent rocket engine underneath. The hatch that allowed access to the lunar surface is seen at the front, with a round radar antenna at the top. Mission commander Gene Cernan is clearly visible through the triangular window. This spaceship performed gracefully, landing on the Moon and returning the Apollo astronauts to the orbiting command module in December of 1972. So where is Challenger now? While its descent stage remains at the Apollo 17 landing site in the Taurus-Littrow valley, the ascent stage pictured was intentionally crashed nearby after being jettisoned from the command module prior to the astronauts' return to planet Earth.
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
睡梦中与女孩亲吻
发表于：2023-04-23 03:51:36
看了几个视频，非常担忧孤独终老
发表于：2022-10-05 17:22:25
双腿残疾的我，下半生的心愿
发表于：2023-03-22 15:47:16
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
体重二次都是105.3
发表于：2022-01-22 18:37:46
必须加快减重步伐，尽早实现北京治疗膝盖之行
发表于：2022-06-14 03:30:31
继续提高网站技术水平
发表于：2022-02-28 08:33:34
15.09体重106.5
发表于：2022-01-30 15:34:24
小黄狗临死也要死在远方
发表于：2023-03-27 06:51:36
新功能开发完成，继续开发什么功能呢？
发表于：2022-03-28 03:19:41
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