The main danger of a flight to Mars

[550W（sky·忆）]

I'm neutral on this point of view, and I don't know why you're against them
But I have a point of view that if we extend the timeline a little longer and the time unit becomes a few hundred million years later, our Earth's resources may be depleted at any time. We need to consider interstellar migration to other planets to survive. Only by exploring the planetary resources of our own galaxy in advance can we lay the groundwork for future interstellar migration

 

[George²]

I'm neutral on this point of view, and I don't know why you're against them
But I have a point of view that if we extend the timeline a little longer and the time unit becomes a few hundred million years later, our Earth's resources may be depleted at any time. We need to consider interstellar migration to other planets to survive. Only by exploring the planetary resources of our own galaxy in advance can we lay the groundwork for future interstellar migration

In a sense, we won't exhaust the Earth's resources until we've dismantled and used it entirely. That includes the crust, the mantle, and the core. But there really isn't that much left that's economically available with humanity's current energy and technological capabilities.