{"id":10746,"date":"2026-07-10T15:32:00","date_gmt":"2026-07-10T06:32:00","guid":{"rendered":"https:\/\/www.elsi.jp\/?post_type=news_events&#038;p=10746"},"modified":"2026-07-10T16:32:48","modified_gmt":"2026-07-10T07:32:48","slug":"solar_system_peculiar_outcome","status":"publish","type":"news_events","link":"https:\/\/www.elsi.jp\/en\/news_events\/events\/2026\/solar_system_peculiar_outcome\/","title":{"rendered":"ELSI Seminar: The Solar System as a peculiar outcome of planet formation"},"content":{"rendered":"<p><strong>Abstract:<\/strong><\/p>\n<p>Decades of exoplanet observations have confirmed one of humanity\u2019s (and all teenagers\u2019) worst fears: we are strange. Even though Jupiter is the only Solar System planet detectable with present-day technology, the Solar System is quantifiably unusual among exoplanet systems at the ~1% level. Instead, roughly half of main sequence stars host close-in &#8220;super-Earths&#8221; or &#8220;sub-Neptunes&#8221;, and ~10% have Jupiters on non-Jupiter-like, eccentric or close-in orbits. In this talk I will explore how the Solar System fits in a larger context by addressing key steps in planetary system formation. I will present models to explain the diversity of observed planetary systems and show how Earth-sized can sometimes be very non-&#8220;Earth-like&#8221;, with extreme compositions, orbits and climates.\u00a0 While many unanswered questions remain, it seems clear that, when they form, giant planets play a decisive role in the sculpting of their planetary systems and that Jupiter was central to shaping our unusual Solar System.<\/p>\n<p>&nbsp;<\/p>\n<p>Blog: <a href=\"http:\/\/planetplanet.net\" target=\"_blank\" rel=\"noopener\">http:\/\/planetplanet.net<\/a><br \/>\nResearch website: <a href=\"http:\/\/perso.astrophy.u-bordeaux.fr\/~sraymond\/\" target=\"_blank\" rel=\"noopener\">http:\/\/perso.astrophy.u-bordeaux.fr\/~sraymond\/<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Speaker:<\/strong> Dr. Sean Raymond (Laboratoire d&#8217;Astrophysique de Bordeau)<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Host:<\/strong> Christine Houser, ELSI.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Date:<\/strong> Wed. 15 July 16:00-17:00 JST<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Venue:<\/strong> Mishima Hall, ELSI (Hybrid)<\/p>\n","protected":false},"featured_media":10743,"template":"","news_events_cat":[6],"acf":[],"_links":{"self":[{"href":"https:\/\/www.elsi.jp\/wp-json\/wp\/v2\/news_events\/10746"}],"collection":[{"href":"https:\/\/www.elsi.jp\/wp-json\/wp\/v2\/news_events"}],"about":[{"href":"https:\/\/www.elsi.jp\/wp-json\/wp\/v2\/types\/news_events"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.elsi.jp\/wp-json\/wp\/v2\/media\/10743"}],"wp:attachment":[{"href":"https:\/\/www.elsi.jp\/wp-json\/wp\/v2\/media?parent=10746"}],"wp:term":[{"taxonomy":"news_events_cat","embeddable":true,"href":"https:\/\/www.elsi.jp\/wp-json\/wp\/v2\/news_events_cat?post=10746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}