300 Foot Telescope Collapse

At 9:43 p.m. EST on Tuesday the 15th of November 1988, the 300Foot telescope in Green Bank collapsed. The collapse was due to the sudden failure of a key structural element--a large gusset plate in the box girder assembly that formed the main support for the antenna.

Photograph of the 300 foot radio telescope taken on November 15, 1988 before the collapse.

Photograph of the 300 foot radio telescope taken on November 16, 1988. The telescope collapsed at 9:43 PM on November 15, 1988.

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