{"id":162718,"date":"2025-12-01T17:50:08","date_gmt":"2025-12-01T17:50:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/il\/162718\/"},"modified":"2025-12-01T17:50:08","modified_gmt":"2025-12-01T17:50:08","slug":"astronomers-discover-three-earth-sized-planets-orbiting-two-suns-just-like-tatooine-in-star-wars","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/il\/162718\/","title":{"rendered":"Astronomers Discover Three Earth-Sized Planets Orbiting Two Suns \u2014 Just Like Tatooine in Star Wars"},"content":{"rendered":"

Located 190 light-years from Earth, the TOI-2267 system contains two stars \u2014 and, remarkably, each of them hosts planets that transit, or pass in front of, their respective suns. This is the first confirmed case of planets transiting both stars in a binary system.<\/p>\n

The discovery, detailed in the journal Astronomy & Astrophysics, not only challenges existing theories of planetary formation but also broadens the search for rocky worlds in binary environments once thought too unstable. The compact nature of TOI-2267 makes it even more intriguing, with both stars closely orbiting each other in a gravitationally intense dance. These extreme conditions, long believed hostile to planet formation, seem instead to have nurtured three stable terrestrial worlds.<\/p>\n

Behind this breakthrough is a coordinated effort between space-based and ground-based telescopes, combining data from NASA\u2019s TESS mission with follow-up observations by specialized instruments. According to the Instituto de Astrof\u00edsica de Andaluc\u00eda, the discovery pushes the boundaries of what we know about where rocky planets can emerge and endure \u2014 even under gravitational duress.<\/p>\n

A First-Of-Its-Kind Planetary Configuration<\/p>\n

The TOI-2267 system presents a configuration never seen before: two planets transit one star, and a third transits the other. Sebasti\u00e1n Z\u00fa\u00f1iga-Fern\u00e1ndez, first author of the study <\/a>and researcher at the University of Li\u00e8ge (ULi\u00e8ge), described the setup as a \u201cunique planetary arrangement\u201d that establishes TOI-2267 as \u201cthe first binary system known to host transiting planets around both of its stars,\u201d reports Science Daily<\/a>.<\/p>\n

\"AA scene from Star Wars showing the Tatooine sunset(s), a representation of the binary system known to host transiting planets around both of its stars \u2013 \u00a9 Disney <\/p>\n

This arrangement is rare not only in its architecture but also in its physical properties. According to Francisco J. Pozuelos of the Instituto de Astrof\u00edsica de Andaluc\u00eda, TOI-2267 now holds multiple records. It is the most compact and coldest known pair of stars to host planets, and the only one with confirmed transits across both stellar components. In systems where stellar companions orbit in such close proximity, gravitational instability was previously expected to prevent planet formation or at least disrupt long-term orbital stability.<\/p>\n

Ground and Space Collaboration Unlocks Detection<\/p>\n

Initial hints of TOI-2267\u2019s planetary structure came from NASA\u2019s Transiting Exoplanet Survey Satellite (TESS). The telescope<\/a> identified potential transit signals, which prompted further investigation using custom detection software developed by the teams at ULi\u00e8ge and IAA-CSIC, known as SHERLOCK.<\/p>\n

To verify the planets, researchers launched an extensive campaign using ground-based facilities. Key to this effort were the SPECULOOS and TRAPPIST telescopes, robotic observatories operated by ULi\u00e8ge under principal investigator Micha\u00ebl Gillon. <\/p>\n

These instruments specialize in tracking small exoplanets around faint, cool stars \u2014 precisely the conditions found in the TOI-2267 system. The data they provided confirmed not only the existence of the three Earth-sized planets but also offered critical insights into their orbital patterns and alignment within the binary structure.<\/p>\n

A New Lens on Planetary Diversity<\/p>\n

The system offers scientists a natural laboratory to test planet formation theories under extreme conditions. \u201cDiscovering three Earth-sized planets in such a compact binary system is a unique opportunity,\u201d said Z\u00fa\u00f1iga-Fern\u00e1ndez, noting that it allows researchers to explore how planetary systems can develop and survive despite dynamic instability.<\/p>\n

Pozuelos, a co-leader of the study, echoed this sentiment, calling TOI-2267 \u201ca true natural laboratory\u201d that helps illustrate the variety of planetary configurations in our galaxy. With conditions previously believed too disruptive for stable planetary development, the system demonstrates that rocky planets can, in fact, emerge and persist even within gravitationally complex environments.<\/p>\n

According to the teams involved, this finding reinforces the need for continued cooperation between space and ground observatories. <\/p>\n","protected":false},"excerpt":{"rendered":"Located 190 light-years from Earth, the TOI-2267 system contains two stars \u2014 and, remarkably, each of them hosts…\n","protected":false},"author":2,"featured_media":162719,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[85,46,141,145],"class_list":{"0":"post-162718","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-il","9":"tag-israel","10":"tag-science","11":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/162718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/comments?post=162718"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/posts\/162718\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media\/162719"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/media?parent=162718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/categories?post=162718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/il\/wp-json\/wp\/v2\/tags?post=162718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}