from Stephen Strom, a friend, collaborator (Secrets from the Center of the World, University of Arizona Press) and astronomer: "One thing...although close, Mars and Earth won't be close enough to make the red planet
appear as big as the full moon....it's brightness will surely draw the eye, though!
Thought you'd be interested in this link -- complete with animation -- It might be
exciting for your readers to glance at.
Also, see comments--Might be wrong. Still, here's info on Mars.
(Sorry, the hyperlink function on blogger is not working on this particular blog.)