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@ARTICLE{2026Natur.655..332C,
       author = {{Ciufolini}, Ignazio and {Paolozzi}, Antonio and {Pavlis}, Erricos C. and {Ries}, John C. and {Paris}, Claudio and {Ortore}, Emiliano and {Matzner}, Richard and {Kuzmicz-Cieslak}, Magdalena and {Deka}, Darpanjeet and {Pavlis}, Despina E. and {Schreiner}, Patrick and {Ni}, Wei-Tou and {Penrose}, Roger and {Gurzadyan}, Vahe},
        title = "{LARES-2 satellite measures frame-dragging effect around the Earth}",
      journal = {\nat},
         year = 2026,
        month = jul,
       volume = {655},
       number = {8122},
        pages = {332-335},
     abstract = "{Laser-ranging provides some of the most precise tests of gravity in the
        weak-field regime, enabling experimental probes of Einstein's
        general theory of relativity using the Earth as a
        laboratory$^{1}$. A central test of general relativity is the
        amplitude of frame-dragging, that is, the dragging of spacetime
        by a rotating mass$^{2, 3, 4-5}$. Owing to its optimized orbit,
        a very low surface-to-mass ratio and a highly uniform
        retroreflector distribution, we show that the recently launched
        Laser Relativity Satellite 2
        (LARES-2)$^{6}${\textemdash}together with its predecessor LAGEOS
        and the GRACE satellites{\textemdash}enables a measurement of
        terrestrial frame-dragging with a relative uncertainty at the
        one-part-in-a-thousand level, representing an order-of-magnitude
        improvement over previous Solar System determinations. This
        result provides a stringent confirmation of general relativity
        in the near-Earth environment and places strong constraints on
        alternative gravitational models that predict deviations
        specifically in frame-dragging, including scalar-tensor
        extensions such as Chern-Simons gravity$^{7,8}$. Beyond tests of
        fundamental physics, the combined analysis of LARES-2 and LAGEOS
        also improves the determination of Earth's lunisolar tides,
        illustrating the broader geophysical impact of high-precision
        relativistic satellite experiments.}",
          doi = {10.1038/s41586-026-10715-0},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2026Natur.655..332C},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}