There can't be anything wrong, factually or visually, with anything about this presentation. It has to be consistent with what is being written in the science journals.
The hardest choices we had to make was deciding what to leave out. What happens when an icy meteor hits the Earth is different than when an iron meteor hits the Earth. But we had to leave out some things.
Its a subject that's near and dear to my heart.
It wouldn't be cheap to do. But having an asteroid hit us wouldn't be cheap either.
It's critical that NASA think very hard about these unmanned science missions continuing.
