The red dot in this picture is the most distant quasar ever discovered (at least as of October 2003). The redshift 6.4 quasar is seen at a time when the universe was just 800 million years old. The light-travel time from this object to us is about 13 billion years.
Beginning with baby steps, the golf-cart-size robot will use hazard avoidance cameras to decide its movements on the Martian surface. The rover will build up its own terrain map, and the drivers back on Earth, watching their monitors, will see what it sees