[null and void]

I agree. There is no pressing need for a human presence on Mars. Drones on Mars would be very cool.

Sure. You say that now.

You'll be singing a different tune when the sun gets old and swells to the size of the earth's orbit!

[WhiskeyX]

Yes, but long before then multiple large asteroids will have eradicated Humans on the Earth and transformed the face of the Earth into a molten mass while greatly accelerating the thinning of the atmosphere to a small percentage of its current mass and pressure.