guest Moderator 管理成员 注册 2002-10-07 消息 402,305 荣誉分数 76 声望点数 0 2016-05-08 #1 The planet Mercury will pass in front of the sun on Monday in a rare event called a transit. It will be visible across Canada during the day, but don’t look directly at the sun with your eyes to see it, Bob McDonald writes. 查看原文...
The planet Mercury will pass in front of the sun on Monday in a rare event called a transit. It will be visible across Canada during the day, but don’t look directly at the sun with your eyes to see it, Bob McDonald writes. 查看原文...
