[clark]

Here's another idea instead, would it be possible to allow for the *gradual* terraforming of any planet WITHOUT a facility?

What I'm thinking is that as soon as you coloniza a less than suitable planet, your people automatically start changing the atmosphere via industry or whatever.

So while the Atmosphere convertor can do it in 1.5 years- without it, your people could convert the planet say in... 5 or 10 years, without the facility?

Perhaps it could be an advanced trait.