With glare of the sun shining through the roof making fly balls difficult to track during day games, the clear plastic panes of the Astrodome’s ceiling are painted at a cost of $20,000. The decision to cover the roof, which reduces the ambient lighting by 40%, prevents the ballpark’s natural grass from growing and will lead to the use of Astroturf next season.

This Day In Baseball

On May 24, 1965 — With glare of the sun shining through the roof making fly balls difficult to track during day games, the clear plastic panes of the Astrodome’s ceiling are painted at a cost of $20,000. The decision to cover the roof, which reduces the ambient lighting by 40%, prevents the ballpark’s natural grass from growing and will lead to the use of Astroturf next season.

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