How to terraform planets?

[petersohn]

I heard a lot about terraforming, but could not figure out how to do it. First I tried to launch some carbon dioxide at Mars, but anywhere I aimed, even zoomed in, it missed. What am I doing wrong?

[Plasmic Physics]

(FYI Terraforming requires more than just carbon dioxide).

There is a bug in the program, where if you have a too high time ratio, projectiles (including material) travelling above a certain velocity will pass through target body instead of colliding with it. So either decrease the launch velocity, or decrease the time ratio.

[DoctorWh0?]

If you want to increase the heat and add water, follow the advice of the comment above. If you want a different texture, increase and decrease hydrogen in the materials bar. That's my advice.