21.   Researchers also expect to gather more information on the kinds of resources on the Martian surface that could be converted into fuel.

22.   Rather, they have picked up signs of hydrogen based on neutrons coming from the Martian surface.

23.   Shaped like spears, they will plunge into the Martian surface without any braking whatsoever, penetrating several feet in the hope of finding water.

24.   Such a mission, which will require a blastoff from the Martian surface, would be the precursor to a manned Mars mission.

25.   Surrounded by the protective air bags, Pathfinder will fall to the Martian surface.

26.   The camera that will gather and transmit most of the data from the Martian surface was built at the University of Arizona.

27.   The design is based on the first image received from Pathfinder after its landing on the martian surface.

28.   The features suggest water was once abundant on the Martian surface.

29.   The evidence shows depressions in the Martian surface that could have been made by water oozing out of the ground or flowing from a canyon wall.

30.   The images taken by the camera on the first day were taken from its stowed position about three feet above the Martian surface.