Earth From Space: 15 Years of Amazing Things The view of Earth from orbit is never the same – from minute to minute, day to day, year to year. In December of 1999 NASA launched a satellite that opened up a new era in our ability to see, measure and understand Earth. The satellite called Terra rocketed to space on Dec. 18, 1999. (And while it was designed for a five-year mission life – Terra is still up there, collecting invaluable data on Earth’s land, atmosphere and oceans.) In 2002 and 2004, satellites named Aqua and Aura followed. These are often called the three flagship satellites of NASA’s Earth Observing System -- which began in earnest with Terra and now comprises a fleet of 18 Earth-observing satellites that have revolutionized our ability to observe our home planet from space. NASA and other space agencies had launched satellites to study Earth before. But the past 15 years have produced a more comprehensive look at Earth from space than any other period in history. At a t...