Well,I think that this is linked with the Sun itself.
Without atmosphere,both Moon and Mars are vulnerable,but Mars is (at least) farther from the Sun,so it is more protected than the Moon.
Fusion energy is very efficient and clean,but it's very hard to achieve it.That's why I think that instead of wasting energy on starting the fusion reaction we could use nuclear fission to start the fusion reaction.
It's a simple concept:just let more neutrons in the fission reaction.
This will...
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My name is Potopea Daniel and I am from Romania.
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