Mars colonisation is a hype topic. What is the biggest threat for those wishing to take a part in a journey to Mars?

low temperatures
lack of oxygen
poor gravity
cosmic rays
The only ef­fi­cient pro­tec­tion against high en­er­get­ic cosmic ra­di­a­tion, one we are granted with, is Earth magnetic field. Both during a long flight to Mars and through the stay on the planet, that did not form elec­tro­mag­net­ic field, as­tro­nauts would be exposed to ion­iza­tion.

Answers distribution

low temperatures
lack of oxygen
poor gravity
cosmic rays
answers
flagFrance
3%
15%
6%
75%
33
flagItaly
10%
5%
10%
73%
19
flagSpain
9%
18%
0%
72%
11
flagthe Philippines
0%
40%
0%
60%
10
flagSweden
5%
27%
11%
55%
18
flagthe United Kingdom
9%
26%
7%
54%
268
flagIndia
11%
25%
9%
50%
62
flagthe Netherlands
3%
34%
7%
50%
26
flagSwitzerland
10%
30%
10%
50%
10
flagPoland
10%
30%
8%
49%
12438
flagUnknown
11%
31%
7%
49%
517
flagGermany
16%
28%
8%
45%
112
flagthe United States
9%
29%
13%
44%
107
flagCanada
7%
57%
0%
35%
14
flagNorway
33%
33%
0%
33%
18
flagRepublic of Ireland
0%
58%
12%
29%
31

Gender

men52%
women43%
low temperatures
9%
12%
lack of oxygen
30%
34%
poor gravity
7%
9%
cosmic rays
52%
43%

Language versions

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Mars colonisation is a hype topic. What is the biggest threat for those wishing to take a part in a journey to Mars?
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Author: smyru
Illustration: FlyingSinger
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