Anxiety abounds at NASA as Mars landing day arrives
By MARCIA DUNN, AP Aerospace Writer CAPE CANAVERAL, Florida (AP) — A NASA spacecraft's six-month journey to Mars neared its dramatic grand finale Monday in what scientists and engineers hoped would be a soft precision landing on flat red plains. The InSight lander aimed for an afternoon touchdown, as anxiety built among those involved in the $1 billion international effort. InSight's perilous descent