The University of Chicago has dedicated a new laboratory for interdisciplinary research in astrophysics. The building contains about 32 000 sq ft of laboratory and office space and cost $1.75 million of NASA's money. Two floors are above ground and two below. The subbasement is a concrete‐shielded counting laboratory for measuring radioactivity of meteorites and planetary samples. A vertical shaft 3 ft in diameter extends 50 ft below the subbasement level to bedrock for low‐level counting.

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