{"id":115105,"date":"2020-10-26T04:22:39","date_gmt":"2020-10-26T11:22:39","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2020\/10\/first-habitable-zone-earth-sized-exoplanet-discovered-with-planet-hunter-tess"},"modified":"2020-10-26T04:22:39","modified_gmt":"2020-10-26T11:22:39","slug":"first-habitable-zone-earth-sized-exoplanet-discovered-with-planet-hunter-tess","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2020\/10\/first-habitable-zone-earth-sized-exoplanet-discovered-with-planet-hunter-tess","title":{"rendered":"First Habitable-Zone, Earth-Sized Exoplanet Discovered With Planet-Hunter TESS"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/En_2_W1bepA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>TESS, the Transiting Exoplanet Survey Satellite, was launched in 2018 with the goal of discovering small planets around the Sun\u2019s nearest neighbors, stars bright enough to allow for follow-up characterizations of their planets\u2019 masses and atmospheres. TESS has so far discovered seventeen small planets around eleven nearby stars that are M dwarfs \u2014 stars that are smaller than the Sun (less than about 60% of the Sun\u2019s mass) and cooler (surface temperatures less than about 3900 kelvin). In a series of three papers that appeared together this month, astronomers report that one of these planets, TOI-700d, is Earth-sized and also located in its star\u2019s habitable zone; they also discuss its possible climate.<\/p>\n<p>CfA astronomers Joseph Rodriguez, Laura Kreidberg, Karen Collins, Samuel Quinn, Dave Latham, Ryan Cloutier, Jennifer Winters, Jason Eastman, and David Charbonneau were on the teams that studied TOI-700d, one of three small planets orbiting one M dwarf star (its mass is 0.415 solar masses) located one hundred and two light-years from Earth. The TESS data analysis found the tentative sizes of the planets as being approximately Earth-sized, 1.04, 2.65 and 1.14 Earth-radii, respectively, and their orbital periods as 9.98, 16.05, and 37.42 days, respectively.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>TESS, the Transiting Exoplanet Survey Satellite, was launched in 2018 with the goal of discovering small planets around the Sun\u2019s nearest neighbors, stars bright enough to allow for follow-up characterizations of their planets\u2019 masses and atmospheres. TESS has so far discovered seventeen small planets around eleven nearby stars that are M dwarfs \u2014 stars that [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[493,8],"tags":[],"class_list":["post-115105","post","type-post","status-publish","format-standard","hentry","category-climatology","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/115105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=115105"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/115105\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=115105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=115105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=115105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}