搜索kosmos

太阳系

深空行者的困惑

先锋异常(Pioneer Anomaly),用来指从对先锋10,11号飞船的精确运动测量,而发现的一个尚无法解释的现象:他们居然都有一个朝向太阳的微小的加速度,数值为 $a_P = (8.74 \pm 1.33)\times 10^{-10}m/(s^2)$

ref: http://arxiv.org/abs/gr-qc/0506139

Deep Impact!值得记住的第一次Star War!

撞到了!
瞄准目标慧核:
[img]http://www.nasa.gov/images/content/121282main_nucleus-330.jpg[/img]
这是快要撞到之前撞击器看到的彗星表面:
[img]http://www.nasa.gov/images/content/121479main_lastpic-362.jpg[/img]
撞击发生13秒后轨道飞船拍摄的喷溅照片:
[img]http://www.nasa.gov/images/content/121489main_pia02123-471.jpg[/img]
撞击发生16秒后轨道飞船拍摄的喷溅照片:
[img]http://www.nasa.gov/images/content/121482main_pia02121-444.jpg[/img]
另一幅喷溅照片:
[img]http://www.nasa.gov/images/content/121475main_confirmation-516.jpg[/img]

一次漂亮的攻击行动:
Mission Events (Earth-receive time - in EDT)
July 3, 2:07 a.m: Impactor released into comet's path

Syndicate content Syndicate content Syndicate content