[Hunble]

If they can't even say it will hit (75 to one?) how can they possibly say the rover is outside the impact zone if it does?

However, that was a very good point and NASA is loosing their credibility.

[dayglored]

>> If they can't even say it will hit (75 to one?) how can they possibly say the rover is outside the impact zone if it does?

> However, that was a very good point and NASA is loosing their credibility.

No, it's not a good point. I think you misunderstood what I wrote.

The largest possible "impact zone" is the half of the planet facing the asteroid as it approaches the planet. By definition.

If the rover is on the OTHER side of the planet, it is "outside the impact zone".

So regardless of whether the asteroid hits the planet or not, if the rover is on the other side of the planet, the rover is safe.