|
- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
|
本帖最后由 细胞海洋 于 2012-11-23 21:59 编辑 4 c {/ F- _& Z4 `" R/ ^
. d$ M7 Z6 n; I T* L0 _. S. N4 J
 / }: W9 `& S- D4 e3 [: w
9 x7 v; `( A: F3 _
COVER The lower hemisphere of a fast-spinning Earth shown 2 hours after a giant impact. Colors denote the silicate mantles and iron cores of Earth and the impactor. The debris evolves into a Moon-forming disk composed primarily of material from Earth's mantle, explaining the isotopic similarity between Earth and the Moon. In this model, the fast-spinning Earth is slowed by an orbital resonance between the Moon and the Sun. See pages 1040, 1047, and 1052. Image: Sarah T. Stewart . U" T3 E4 @: S" y# U3 M+ h, I' a
1 E, p- V* h5 _9 ]5 {7 n% } |
附件: 你需要登录才可以下载或查看附件。没有帐号？注册
-
总评分: 威望 + 20
包包 + 20
查看全部评分
|
发表于 2012-11-23 21:32
发表于 2012-11-24 00:04
