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
flagAustralia
0%
11%
5%
83%
18
flagFrance
2%
14%
5%
76%
34
flagSpain
8%
16%
0%
75%
12
flagSwitzerland
8%
13%
4%
73%
23
flagItaly
10%
5%
10%
73%
19
flagSweden
4%
21%
8%
65%
23
flagDenmark
10%
10%
20%
60%
10
flagthe United Kingdom
8%
24%
7%
57%
330
flagUnknown
9%
27%
6%
55%
945
flagPoland
9%
28%
7%
52%
15035
flagIndia
8%
31%
6%
52%
146
flagGermany
13%
26%
7%
51%
141
flagthe Philippines
10%
30%
10%
50%
20
flagthe Netherlands
6%
34%
6%
48%
29
flagthe United States
9%
27%
12%
47%
145
flagMalaysia
9%
18%
27%
45%
11
flagBelgium
9%
9%
36%
45%
11
flagCanada
5%
50%
0%
44%
18
flagNorway
28%
38%
0%
33%
21
flagRepublic of Ireland
0%
57%
12%
30%
33

Gender

men55%
women42%
low temperatures
9%
12%
lack of oxygen
28%
34%
poor gravity
6%
9%
cosmic rays
55%
42%

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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