Monitor our planet's vital signs, such as sea level height, atmospheric carbon dioxide concentration and Antarctic ozone. Trace the movement of water around the globe using the gravity map from NASA's GRACE satellites. Spot volcanic eruptions and forest fires using the carbon monoxide vital sign. Check out the hottest and coldest locations on Earth with the global surface temperature map.“Eyes on the Earth” displays the location of all of NASA's operating Earth-observing missions in real time and lets you compare them in size to a scientist or a school bus. Get a sneak peek at upcoming missions and learn how NASA is planning to study our Earth in the future.