EntityQ450572· pop 6· linked from 10 articlesJacques LaskarSign in to saveFrench astronomerConnectionschaos theoryEntityMilankovich cycleEntityEarthConceptParisEntityMarsEntityVenusEntityMercuryEntityPierre-Simon LaplaceEntityWayback MachineEntitydigital object identifierEntityJoseph-Louis LagrangeEntityastronomerEntitycelestial mechanicsEntitybibcodeEntityFrench Academy of SciencesEntityretrograde motionEntityParis Observatory, PSL UniversityEntityNational Center for Scientific ResearchEntityQ22908627EntityÉcole normale supérieure Paris-SaclayEntityCategories1955 births20th-century French astronomers21st-century French astronomersLiving peopleMembers of the French Academy of SciencesResearch directors of the French National Centre for Scientific ResearchScientists from Paris