Mon Aug 24, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Ciufolini, Ignazio, Paolozzi, Antonio, Pavlis, Erricos C., Ries, John C., Paris, Claudio, Ortore, Emiliano, Matzner, Richard, Kuzmicz–Cieslak, Magdalena, Deka, Darpanjeet, Pavlis, Despina E., Schreiner, Patrick, Ni, Wei–Tou, Penrose, Roger, and Gurzadyan, Vahe, 2026. LARES–2 satellite measures frame–dragging effect around the Earth. Nature, 655(8122):332–335, doi:10.1038/s41586-026-10715-0.
• from the NASA Astrophysics Data System • by the DOI System •
@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}
}
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