11.   The two botched missions also forced the space agency to scale back what had been an ambitious program to explore the planet.

12.   Two engineering professors are developing robot insects that someday could help soldiers scout enemy positions or aid scientists exploring other planets.

13.   Todd survives the dumping and he explores the planet, a dark, forbidding place with huge piles of refuse.

14.   Two Vanderbilt University professors are developing robot insects that someday could help soldiers scout enemy positions or aid scientists exploring other planets.