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Laser Altimeter

An instrument that measures surface elevation by timing the return of laser pulses reflected from a planet’s surface. MESSENGER’s altimeter was key to mapping Mercury’s topography.

Source: nasa.gov

APODs including "Laser Altimeter"

MESSENGER's Last Day on Mercury

MESSENGER's Last Day on Mercury

01/05/2025

Exaggerated Moon

Exaggerated Moon

24/07/2024