With robots on Mars, NASA hits a home run Richmond Times-Dispatch

Many people think that the planet Mars is cursed. Scientists don’t believe in curses, but it is true that two-thirds of all missions to Mars have failed. Doing laboratory work on Mars is very hard.
We cannot send humans there (yet). We send robots instead, to look for water and signs of life.
Today there are two six-wheeled robots cruising on the surface of Mars. To be there, after a six-month trip through space, is a miracle of modern technology.