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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

8 years 4 months ago

The target region of Rosetta’s lander Philae has been selected: the site offers a unique scientific potential with hints of activity nearby, minimum risks to the lander and good conditions to exploit energy resources. Landing is scheduled for November 11.

8 years 4 months ago

Two months prior to its separation, descent, and landing on the Churyumov-Gerasimenko nucleus, the Philae lander of the ESA Rosetta mission delivers its first images of the comet. The 7 micro-cameras of the CIVA instrument, designed and developed under IAS responsibility, will acquire the full 360° panorama of the landing site.
 

8 years 9 months ago

After a ten-year-long interplanetary journey, Rosetta finally approaches its final destination, the nucleus of the comet Churyumov-Gerasimenko, on which the Philae module will land in November. The CIVA imaging system, designed to obtain a stereoscopic panoramic view of the surface of the comet after the landing of Philae, has just been turned on successfully, after years of hibernation, at a distance of more than 600 million km from the Sun.

 

 

8 years 11 months ago

From source to sink: Meteorites from Mars have been known since the 1970’s, but researchers in Oslo, In Lyon, and at IAS have for the first time been able to identify the source crater for shergottites, the largest group of martian meteorites. The source region on Mars was probably impacted about 3 million years ago by a medium-size body, and the meteorites ended their space journey at the Earth’s surface a few thousand years ago.

 

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