Scientists opened a sealed envelope after 10 years. Gravity still didn’t make sense

Science Daily | Sun, 20 Sep 2026 06:30:31 EDT

NIST's sealed findings,
A decade’s worth of effort,
Gravity still strange.

A decade-long NIST experiment has produced a new measurement of the universal gravitational constant that differs unexpectedly from another leading result, deepening a 225-year-old physics puzzle. The discrepancy is tiny, but for one of nature’s most fundamental constants, it is large enough to keep scientists…

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