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Article
First results of the LARES 2 space experiment to test the general theory of relativity
The LAGEOS 3 (today LARES 2) space experiment was proposed in the eighties by the Physics Department and by the Center of Space Research (CSR) of the University of Texas (UT) at Austin and by the Italian Space...
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Article
Open AccessThe LARES 2 satellite, general relativity and fundamental physics
LARES 2, successfully launched on July 13, 2022, is a new generation laser-ranged satellite. LARES is an acronym for LAser RElativity Satellite. The first LARES satellite was successfully launched on February ...
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Article
Yang–Mills-like field theories built on division quaternion and octonion algebras
Yang–Mills-like field theories are developed using both division quaternion and octonion algebras. Quaternionic field theory is the same as the Yang–Mills gauge theory. The octonionic field theory is an expans...
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Article
Open AccessSatellite Laser-Ranging as a Probe of Fundamental Physics
Satellite laser-ranging is successfully used in space geodesy, geodynamics and Earth sciences; and to test fundamental physics and specific features of General Relativity. We present a confirmation to approxim...
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Article
Open AccessAn improved test of the general relativistic effect of frame-dragging using the LARES and LAGEOS satellites
We report the improved test of frame-dragging, an intriguing phenomenon predicted by Einstein’s General Relativity, obtained using 7 years of Satellite Laser Ranging (SLR) data of the satellite LARES (ASI, 201...
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Tests of General Relativity with the LARES Satellites
LARES (LAser RElativity Satellite) developed by the Italian Space Agency (ASI) is a laser-ranged satellite successfully launched in February 2012 by ESA (European Space Agency). A second ASI laser-ranged satel...
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Article
Open AccessReply to “A comment on “A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model, by I. Ciufolini et al.””
In 2016, we published “A test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth’s gravity model. Measurement of Earth’s dragging of inertial frames [1]”, a measurement of frame-draggin...
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Article
Open AccessA new laser-ranged satellite for General Relativity and space geodesy: III. De Sitter effect and the LARES 2 space experiment
In two previous papers we presented the LARES 2 space experiment aimed at a very accurate test of frame-dragging and at other tests of fundamental physics and measurements of space geodesy and geodynamics. We ...
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Article
A new laser-ranged satellite for General Relativity and space geodesy: II. Monte Carlo simulations and covariance analyses of the LARES 2 experiment
In the previous paper we have introduced the LARES 2 space experiment. The LARES 2 laser-ranged satellite is planned for a launch in 2019 with the new VEGA C launch vehicle of the Italian Space Agency (ASI), E...
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Article
A new laser-ranged satellite for General Relativity and space geodesy: I. An introduction to the LARES2 space experiment
We introduce the LARES 2 space experiment recently approved by the Italian Space Agency (ASI). The LARES 2 satellite is planned for launch in 2019 with the new VEGA C launch vehicle of ASI, ESA and ELV. The or...
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Article
Modelling LARES temperature distribution and thermal drag II: Numerical computation of current-epoch thermal forces
The LARES satellite is a laser-ranged space experiment to contribute to geophysics observation, and to measure the general relativistic Lense-Thirring effect. LARES consists of a solid tungsten alloy sphere, i...
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Article
Erratum to: Modelling LARES temperature distribution and thermal drag
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Article
Open AccessA test of general relativity using the LARES and LAGEOS satellites and a GRACE Earth gravity model
We present a test of general relativity, the measurement of the Earth’s dragging of inertial frames. Our result is obtained using about 3.5 years of laser-ranged observations of the LARES, LAGEOS, and LAGEOS 2...
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Article
Modelling LARES temperature distribution and thermal drag
The LARES satellite, a laser-ranged space experiment to contribute to geophysics observation, and to measure the general relativistic Lense-Thirring effect, has been observed to undergo an anomalous along-trac...
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Article
Preliminary orbital analysis of the LARES space experiment
The LARES satellite was successfully launched in 2012 for tests of General Relativity and gravitational physics including the accurate measurement of frame-dragging. It is currently very well observed all over...
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Article
Testing General Relativity and gravitational physics using the LARES satellite
The discovery of the accelerating expansion of the Universe, thought to be driven by a mysterious form of “dark energy” constituting most of the Universe, has further revived the interest in testing Einstein’s...
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Article
Testing gravitational physics with satellite laser ranging
Laser ranging, both Lunar (LLR) and Satellite Laser Ranging (SLR), is one of the most accurate techniques to test gravitational physics and Einstein’s theory of General Relativity. Lunar Laser Ranging has prov...
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Introduction to General Relativity and John Archibald Wheeler
John Archibald Wheeler was born on July 9, 1911, in Jacksonville, Florida, and passed away on April 13, 2008, in Hightstown, New Jersey; his influence on gravitational physics and science in general will remai...
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The LARES Space Experiment: LARES Orbit, Error Analysis and Satellite Structure
The LARES space experiment, by the Italian Space Agency (ASI), is based on the launch of a new laser ranged satellite, called LARES (LAser RElativity Satellite), using the new launch vehicle VEGA (Veicolo Euro...
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Chapter
Introduction to Gravitational Waves
We present an introductory description of the production, propagation and detection of gravitational radiation in an astrophysical settings.
