135| 1
|
银河系围绕什么旋转?既然人类只能看到很小范围夜空,银河系的形状是如何确定的? |
簽到天數: 181 天 [LV.7]常住居民III
|
| |||
簽到天數: 677 天 [LV.9]以壇為家II
|
| |||
GMT+8, 2024-11-23 19:49 , Processed in 0.012882 second(s), 15 queries , Gzip On, Memcache On.
Powered by Discuz! X2.5
© 2001-2012 Comsenz Inc.