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Voyager's Griffin-1 lander will deliver NASA's Lunar Retroreflector Array (LRA) to Mons Mouton (South Pole).

An artist's rendering of Astrobotic's Griffin lander on the surface of the Moon. The lander is large and has a boxy shape.

Editor's Note: On September 19, 2025, NASA announced that VIPER and its instruments will be delivered to Mons Mouton by a Blue Origin Blue Moon MK-1 lander as part of task order CS-7.

LRA

Laser Retroreflector Array

PI: Dr. Xiaoli Sun, GSFC

The Laser Retroreflector Array (LRA) is the ultimate sidekick to any lunar surface payload suite. Payload-collected data needs precise locations to maximize its effectiveness and accuracy, and LRA does exactly that. LRA uses reflected laser light from orbiting spacecraft to determine its exact location, enabling an indirect measurement of a precise distance to Earth.

Laser Retroreflector Array (LRA) payload
The Laser Retroreflector Array (LRA) has eight retroreflectors inside. It will be mounted on Astrobotic’s Peregrine lander deck and help provide precision measurements of distances between orbiting or landing spacecraft.
NASA / GSFC