If lab projects die, are they taken off the labs site or do they just sit there incase they ever get resurrected. For some projects (MARS) the only suggestion that they are still active is that they're on the labs site. Can we actually take this fact as a sign?
We do move inactive projects off of Labs eventually once it is determined that no further work will be completed and/or public interest subsides. When and how these projects leave Labs varies.
The Mars project is still active and the development team is working on improving upon the previous release. This project will not be removed from Labs in the near future.