31.   The movie appears as the probe Sojourner is taking the world on a colorful ride across the Martian surface, complete with regular weather updates.

32.   The latter craft is to look deep beneath the Martian surface in search of water, which is considered the key ingredient for life.

33.   The new evidence reported Thursday comes from the discovery of a series of broad magnetic stripes frozen in the rocky Martian surface and stretching halfway across the planet.

34.   The next U.S. flight, Mars Pathfinder, is considered an experimental mission intended to test new technologies for ranging across the Martian surface with automated vehicles.

35.   The plutonium was to be a source of electrical power for the spacecraft in its planned exploration of the Martian surface.

36.   The rock presumably came from underneath the Martian surface.

37.   The spacecraft, launched on Monday, is to probe deep beneath the Martian surface in search of water, which is considered the key ingredient for life.

38.   The spacecraft is equipped with instruments designed to map the mineral composition of the rugged Martian surface, search for evidence of underground water and measure radiation levels.

39.   The two packages will crash on the Martian surface with enough force to probe as far as six feet deep into the layered soil.

40.   The visual design is spectacular, and the scenes on the Martian surface look so real that the picture could have been made on location.