|
- 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 . z0 x/ ~1 @9 j# M( n
- D, U) ~4 u% h9 x% R& Y$ |
% R" b) i8 p; a7 X! U5 Y 8 l# W7 |& z. P
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 - z) [0 ], v3 R' t& k5 O2 G4 U
0 }8 c% {) @+ [ W9 u4 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
