Alexis+R.

 The Pahtfinder is a machine that landed on Mars. It was the size of a microwave, it had six wheels and was called Soujourner. It had taken three years and $150, million dollars to fix him. There were alot of things to build him with. He had a big home and a safety house to live in for seven months. Finally Soujourner was a big sucess, he made it around Mars. When his batteries died he lost contact with earth, for his builders it was the biggest dream come true to them.