Latest News
A partial solar eclipse will be visible from Orsay, between 9:21am to 11:30am. At maximum at 10:28, about 80% of the Sun will be eclipsed.
Many researchers from IAS will be present in schools. An observation will be possible at IAS with special eclipse sunglasses, with comments from astrophysicists Frédéric Baudin and Clara Froment.
The flight model of the SIMBIO-SYS instrument of the ESA BEPI-COLOMBO mission has arrived at IAS last week! IAS, who has already provided the main electronics of SIMBIO-SYS, is also in charge of the calibration of the integrated instrument that will take place during this month. The mission will be launched in 2017, for an arrival at Mercury in 2024.
News about Dark Matter, neutrinos, first stars and the cosmological model: the Planck collaboration, with a leading participation of the Institut d'Astrophysique Spatiale, has just published nearly twenty articles revealing many important results that will allow to better understand major chapters in the book of the Universe.
By analysing their data jointly, the Planck and BICEP2/Keck collaborations have shown that the detection of primordial gravitational waves through the observation of the polarisation of the Cosmic Microwave Background (CMB) has not occurred yet. This result constitutes the denouement of the scientific drama that kept enthralled cosmologists and universe enthusiasts alike since March 2014: the signal, the detection of which has been reported by the BICEP2 team, is not related to the first instants of the Big Bang. It results from the combination of the Galactic signal and of gravitational distortions of the CMB during its propagation down to us.
Since the rendezvous of the Rosetta spacecraft with comet Churyumov-Gerasimenko in early August 2014, its COSIMA instrument has exposed targets for collecting cometary grains. The results have much exceeded expectations, with collected particles up to several 100 µm, including many aggregates. For the first time, cometary grains are collected at a low velocity (
