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When do you all expect Siding Spring to become visible to Curiosity or Opportunity's cameras? How bright will it be if it doesn't flare up or fade out in the next few days?

1. How do you hope to tie in your investigations at Bennu to those of Dawn at Ceres? If so, what are your plans?

2. Did your mission engineers take any cues from the Hayabusa probe? What steps are they planning to take to avoid computer glitches during the sample collection phase?

Since MAVEN will be dipping into the Martian atmosphere, would orbital decay put any limits on possible mission extentions?

What causes the upper atmosphere's temperature to rise? Cometary gas slamming into it, or something else?

Awesome, thanks! I can't wait to find out if they see it. Always wondered what a comet would look like from the Martian surface.