Hey, Houston. Guess what? There may be water in them thar hills.
Just as NASA's scientists recover from this week's exciting Mars
landing, some new information is causing a renewed buzz within the
space agency. It seems NASA's Spirit spacecraft has detected
carbonate particles, which may indicate water once flowed on the
barren, red planet some time ago. The instrument that made the
discovery is an infrared camera designed to sense the composition
of material from afar by measuring heat emissions.