Big G defies precision again as latest measurement clashes with CODATA
After a decade-long effort at the National Institute of Standards and Technology to measure Newton’s gravitational constant Big G, Schlamminger and colleagues report a value of 6.67387e-11 m^3 kg^-1 s^-2 that is about 0.0235% lower than the replicated result and inconsistent with the CODATA standard, highlighting the long-standing scatter in Big G measurements. The team blind-tested the experiment to avoid bias and published their findings in Metrologia, underscoring that precision metrology often raises questions and may point to small systematic biases rather than new physics.
