Scientists find desert moss ‘that can survive on Mars’

https://lemmy.world/post/17171559

Scientists find desert moss ‘that can survive on Mars’ - Lemmy.World

We’ll probably fuck up our own planet badly enough that we’ll never actually get the chance to try terraforming Mars
I heard sometime interesting regarding that recently, if we have the ability to terraform Mars, we’ll have the ability to hear on earth. So why not just fix it here where it’s millions of times easier than doing it on Mars.

So why not just fix it here where it’s millions of times easier than doing it on Mars

¿Por qué no los dos?

Also, I’m not entirely convinced that the problems are analogous. Mars needs to be warmed up, Earth needs to be cooled down. I think a more appropriate challenge would be terragorming Venus.

If we can teraform Venus we can teraform the galaxy. The planet is inhospitable in every single way. We can’t even land spacecraft that last very long. If materials don’t melt from the heat and disintegrate from the atmosphere, then the volcanos ought to do the trick.

It’s also harder to get to Venus than it is Mars.

Kurzgesagt did a video on the topic. We just build a planet-sized sunshade to freeze the atmosphere, launch the excess CO2 into space, and import water from the ice moons of the gas giants. Simple, really.
How To Terraform Venus (Quickly)

YouTube

We just build a planet-sized sunshade to freeze the atmosphere

Cost, 100 to 1000 trillion. We can barely fund NASA

Why is the only argument I ever heard against thinking about things in the cool space future “we couldn’t do it this financial quarter so it’ll never be possible at all”?
I like to think about the space-fairing AI (or cyborgs, if we’re lucky) that will inevitably do this stuff in our stead, assuming we don’t strangle them in the cradle.
I have a feeling we'll learn plenty of applicable lessons from one with the other.