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

Written and edited by the WorldPing NewsdeskPublished Updated Original reporting: ScienceDaily

What happened

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.

Key facts

  • 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.
  • Reported by ScienceDaily and published Sun, 20 Sep 2026 10:30:31 UTC.

Why it matters

Research findings and mission results set the evidence base that policy, funding and later discoveries build on.

What to watch next

  • Peer review status and replication of the findings
  • Mission milestones and next scheduled attempt
  • Funding or policy decisions that follow

Coverage timeline

When each newsroom published on this story, oldest first — all times UTC.

  1. Ancient DNA reveals how plague kept returning for 400 years after the Black Death

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

  3. Satellites show Earth lost more than 12 trillion tons of ice from Greenland, Antarctica in 47 years

Sources

The original report was published by ScienceDaily. WorldPing does not claim that reporting — this page summarises and contextualises it.

Read the full report at ScienceDaily

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