LAGEOS (LAser GEOdynamics Satellite) | Simple Site

LAGEOS (LAser GEOdynamics Satellite)

LAGEOS: An Earth Science Mission Built for Enduring Precision

On May 4, 1976, a spacecraft resembling a disco ball entered orbit almost 3,700 miles (6,000 kilometers) above Earth. This shiny, two‑foot‑wide (60‑centimeter) sphere called the Laser Geodynamics Satellite, or LAGEOS, is covered with 426 retroreflectors—small mirrored prisms designed to bounce laser light directly back to where it came from.

Posted May 4, 2026

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Human Dimensions

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Nicole Aunapu Mann

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11

Air Traffic Management - Exploration

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Barry E. Wilmore

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5

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135

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36

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National Advisory Committee for Aeronautics (NACA)

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10

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5

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45

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7

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24

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6

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4

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22

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2

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9

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6

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40

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Kathleen Rubins

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