text: Mars Rover Sniffs Out Signs of Water After a tedious crawl across the desert floor and a slow, energy-strapped hike up hills, the Mars rover Spirit has finally rewarded scientists with tantalizing 
inputs: Mars Rover Sniffs Out Signs of Water After a tedious crawl across the desert floor and a slow, energy-strapped hike up hills, the Mars rover Spirit has finally rewarded scientists with tantalizing 