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Solar and Planetary Systems

The activities of the team are focused on three major investigations: study of the processes of evolution of the planetary bodies of the Solar System, study of exoplanets, and study of the initial conditions of the Solar System. More specifically, we attempt to study:

- evolution processes by observations of differentiated bodies (terrestrial and giant planets, satellites). These activities are performed through space instruments mounted on orbital or in situ platforms;
- the extra-solar planets by a theoretical but also observational approach through the COROT, PLATO and ARIEL missions;
- the initial conditions for the formation of the Solar System through the study of primitive matter: cometary grains, meteorites, observations of primitive bodies and the interplanetary environment.

Our approach consists in coupling the observation acquired by space instruments, extensive data reduction, numerical modeling and laboratory measurements. These multiple approaches are based on as strong and major instrumental developments with the constant concern to combine both scientific and technological challenges.

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Dernières news

1 month 1 week ago

How many earth-like planets orbit the habitable zone of solar-like stars? How planets form and evolve in their planetary systems? What about the interaction with their stars? These are among the questions the ESA PLATO mission is called to answer, through exquisite measurements of exoPLAnet Transits and Oscillations of stars (you now know the origin of the PLATO acronym). The “transit” measurements yield information on the size of the planets, while the “stellar oscillations” give us the mass and age of the stars, which in turn are fundamental to assess the mass and age of the hosted planets. The exquisite quality of all such measurements is secured by 26 ultra large field-of-view cameras that make the eyes of the PLATO mission.

4 months 1 week ago

During 2023, IAS was able to test 3 Flight cameras (PFM, FM4, FM5) at the Calibration Station. The last camera was finished testing in the second week of December. All of the tests of these cameras took a little over 6 months, during which thermal vacuum tests were carried out as well as scientific performance tests. A team of about twenty people from IAS and the Station worked to enable these tests. Congratulations to all for this major achievement!

10 months 3 weeks ago

Friday June 2nd was the 20th anniversary of the launch of the first ESA probe towards another planet, Mars. A celebration was held at the ESA control center (ESOC) in Darmstadt, Germany. Several colleagues from IAS were there representing the laboratory and the OMEGA team.

1 year 3 days ago

The launch of the JUICE mission was carried out perfectly thanks to the penultimate Ariane 5, Friday April 14, 2023 at 2:14 p.m. Paris time. The first crucial hours of the mission, which included the first communication signals with the spacecraft, first TC and deployment of the solar panels took place nominally. Direction Jupiter and its icy moons!