NASA’s Lunar Trailblazer 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. Credit: Lockheed Martin Space ============================================================================ NASA’s Lunar Trailblazer is gearing up for launch, riding on a SpaceX Falcon 9 as part of the IM-2 mission. This small yet powerful satellite will map water on the Moon, revealing its distribution, form, and movement. Before arriving at the Moon, the small satellite mission will use the gravity of the Sun, Earth, and Moon...