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. Beneath its aluminum exterior sits […]
May 4, 2026 at 05:30AM
from NASA https://ift.tt/PgRedyQ
May 4, 2026 at 05:30AM
from NASA https://ift.tt/PgRedyQ
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NASA