On this day in space! Nov. 15, 1988: The 300-foot Green Bank Telescope collapses suddenly, leaving a huge pile of wreckage in West Virginia
AI-summarised brief · reviewed before publication
On November 15, 1988, the 300‑foot Green Bank radio telescope in West Virginia collapsed at 9:46 p.m. despite clear skies and calm winds. Staff discovered a heap of twisted steel the next morning; investigators traced the failure to a gusset plate, one of four critical connectors that had not been designed for the structure’s 26‑year service life. The telescope, once the world’s largest radio dish, had required major upgrades in 1970 because its surface warped under weight, snow and maintenance. Its sudden loss ended a decade of observations that contributed to dark‑matter research, pulsar origins and the Green Bank 6 cm all‑sky survey. Construction of a larger, more sensitive Green Bank Telescope began three years later and entered science operations in 2001.
💡 Why It Matters
- · The disaster accelerated the transition to a modern, higher‑performance instrument, ensuring the United States retained a premier platform for groundbreaking radio‑astronomy discoveries.
