4090 位用户此时在线
24小时点击排行 Top 10：
- 本站自动实时分享网络热点
- 24小时实时更新
- 所有言论不代表本站态度
- 欢迎对信息踊跃评论评分
- 评分越高，信息越新，排列越靠前
1
2
1
1
2
2
1
1
3
4
3
3
4
2
1
1
5
2
1
1
6
3
2
2
7
3
2
2
8
2
1
1
9
2
1
1
10
2
1
1
11
2
1
1
12
3
2
2
13
Elon Musk on reusable heat shields and Mars reentry:
2
1
1
Elon Musk on reusable heat shields and Mars reentry:
— No one has created a truly reusable orbital heat shield before
— Reentry involves extreme heat and pressure — very hard to withstand
— Only advanced ceramics and carbon-based materials can survive it
— SpaceX aims to make
btc
(
twitter.com)
00:02:28
14
2
1
1
15
Why does SpaceX build its own rockets?
2
1
1
Why does SpaceX build its own rockets?
In 2001, Elon Musk traveled to Russia hoping to purchase refurbished Intercontinental Ballistic Missiles (ICBMs) for a low-cost Mars mission. But the prices were too high, and the negotiations fell flat.
That experience convinced him that
btc
(
twitter.com)
00:01:34
16
2
1
1
17
2
1
1
18
2
1
1
19
2
1
1
20
2
1
1
21
2
1
1
22
2
1
1
23
2
1
1
24
2
1
1