NASA's Lunar Trailblazer in Moon's Orbit (Artist's Concept)

NASA's Lunar Trailblazer mission approaches the Moon as it enters its science orbit in this artist's concept. The small satellite will orbit about 60 miles (100 kilometers) above the lunar surface, producing the best-yet maps of water on the Moon. Lunar Trailblazer will discover where the Moon's water is, what form it is in, and how it changes over time. Observations gathered during the spacecraft's two-year prime mission will contribute to the understanding of water cycles on airless bodies throughout the solar system while also supporting future human and robotic missions to the Moon by identifying where water is located. Lunar Trailblazer was a selection of NASA's SIMPLEx (Small Innovative Missions for Planetary Exploration), which provides opportunities for low-cost science spacecraft to ride-share with selected primary missions. To maintain the lower overall cost, SIMPLEx missions have a higher risk posture and lighter requirements for oversight and management. This higher risk acceptance allows NASA to test pioneering technologies, and the definition of success for these missions includes the lessons learned from more experimental endeavors. https://photojournal.jpl.nasa.gov/catalog/PIA26457