
Hidden Fifth Force Could Be Real, But Quietly Shielded in Our Solar System
A NASA-led study suggests a faint fifth fundamental force could exist but is hidden locally by environmental screening (e.g., chameleon or Vainshtein effects), becoming potentially influential on cosmic scales; detecting it would require next-generation missions and data from Euclid and DESI to probe tiny deviations from general relativity beyond solar-system tests.








