Why is Mars a Dead Planet? Firstly, Mars's core cooled and solidified too quickly, causing it to lose its magnetic field. Secondly, without a magnetic field, the solar wind stripped away Mars's atmosphere. Thirdly, without an atmosphere, the water on Mars's surface completely evaporated. Lastly, as
21:20
5:20
10:26
11:05
6:27
11:11
8:52
10:53
10:13
10:14
10:21
31:45
15:49
8:05
9:05
31:33
30:42
8:17
10:43
6:33