What is happening in Titan’s equatorial belt?

During the last thirteen years (2004 – 2017), the Cassini-Huygens mission allowed a real revolution in the exploration of Titan, the largest moon of Saturn. This mission has revealed that Titan is – in many aspects – very similar to Earth. Titan is a frozen version of Earth, where methane behaves as water, and water ice may be as hard […]

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IPGP Seminary “The Cassini mission at Saturn: latest results and legacy”

  The IPGP is pleased to welcome Linda Spilker from NASA’s Jet Propulsion Laboratory, Scientific Director of the Cassini mission, as part of its general seminars. On May 18 at 11am, she will discuss the Cassini mission on Saturn, the results obtained at the end of the mission, and the legacy of this extraordinary scientific adventure. While waiting for this […]

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Advanced Virgo + Day on May 31, 2018

A French Advanced Virgo + day is organized on May 31 in Paris (ENS, 24 rue Lhomond). It will be an opportunity to present the instrumental evolutions envisaged for Advanced Virgo, as well as the science that will then be accessible and the evolution of the data analysis that will be necessary. This day is open to all those who […]

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MICROSCOPE satellite test of general relativity: No deviations from the equivalence principle at the 10⁻¹⁴ level

While the best measure of the principle of equivalence had not been exceeded for 10 years, the first results of the CNES MICROSCOPE satellite, equipped with ONERA accelerometers, make it possible today to be 10 times better. They demonstrate, with unparalleled precision, 2.10-14, that bodies fall into emptiness with the same acceleration. The principle of equivalence remains at this unshakable […]

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Tiny changes in Earth’s gravitational field could help predict tsunami’s size

For several years now, the APC Virgo Group has been involved in studying the possible synergies between geophysics and terrestrial gravitational wave detectors. Geophysical phenomena cause disturbances of “Newtonian” gravity. If these are not gravitational waves, common interests, especially on measurement techniques, bring the two communities closer together. The studies published in Nature Communications in 2016 (Montagner et al.) And […]

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