If the planet isn't poisoned more and if workers (and the public in general) aren't killed for arbitrary reasons on a whim, ascension is canceled. 
If the planet isn't poisoned more and if workers (and the public in general) aren't killed for arbitrary reasons on a whim, ascension is canceled.
Because the treats said that it would be a le epic Science Victory to land on Mars, and a Nolanesque epic moment would happen with Zimmer style BWAAAAAAAAAAAAAAAAAMS and humans would ascend