{"id":286724,"date":"2021-06-29T16:03:37","date_gmt":"2021-06-29T13:03:37","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/how-would-alien-astronomers-go-about-discovering-life-on-earth\/"},"modified":"2021-06-29T16:03:37","modified_gmt":"2021-06-29T13:03:37","slug":"how-would-alien-astronomers-go-about-discovering-life-on-earth","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/how-would-alien-astronomers-go-about-discovering-life-on-earth\/","title":{"rendered":"#How would alien astronomers go about discovering life on Earth?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a3500979a54e\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a3500979a54e\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/how-would-alien-astronomers-go-about-discovering-life-on-earth\/#Take_it_ETZ%E2%80%A6\" >Take it\u00a0ETZ\u2026<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/how-would-alien-astronomers-go-about-discovering-life-on-earth\/#It_Just_Happens%E2%80%8A%E2%80%94%E2%80%8AYou_Cant_Planet\" >It Just Happens\u200a\u2014\u200aYou Can\u2019t\u00a0Planet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/how-would-alien-astronomers-go-about-discovering-life-on-earth\/#Just_Squint_a_Bit%E2%80%8A%E2%80%94%E2%80%8AYoull_See_It\" >Just Squint a Bit\u200a\u2014\u200aYou\u2019ll See\u00a0It<\/a><\/li><\/ul><\/nav><\/div>\n<p>&#8220;<strong>#How would alien astronomers go about discovering life on Earth?<\/strong>&#8221;<\/p>\n<div>\n<p class=\"graf graf--p\">As astronomers search distant star systems looking for exoplanets, many hope to find the telltale signs of life on other worlds. A new study examines this search from the opposite point of view\u200a\u2014\u200aidentifying worlds where extraterrestrial astronomers may be able to discover life on Earth.<\/p>\n<p class=\"graf graf--p\">Astronomers (the human kind) have found 1,715 stars within 326 light years of Earth where astronomers (the alien kind) would have been able to detect<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/did-a-massive-asteroid-bring-an-end-to-snowball-earth-63f8bd526ec?source=friends_link&amp;sk=67c5d49d3184bddc60aa02d445027d9d\">life on Earth<\/a><span>\u00a0<\/span>during the last 5,000 years.<\/p>\n<p class=\"graf graf--p graf--startsWithDoubleQuote\">\u201cOne might imagine that there are worlds beyond Earth that have already detected us and are wondering if they are alone in the Cosmos. This catalog is an intriguing thought experiment for which one of our neighbors might be able to find and study Earth,\u201d<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/www.amnh.org\/explore\/news-blogs\/research-posts\/new-study-ids-nearby-star-systems-that-can-see-earth\">Jackie Faherty<\/a>, a senior scientist at the Department of Astrophysics at the American Museum of Natural History, describes.<\/p>\n<h2 class=\"graf graf--h4\"><span class=\"ez-toc-section\" id=\"Take_it_ETZ%E2%80%A6\"><\/span>Take it\u00a0ETZ\u2026<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"graf graf--p\">Astronomers have several methods to detect exoplanets orbiting distant stars. Roughly 70 percent of the 4,400 known<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/thecosmiccompanion.net\/do-exoplanets-with-oxygen-mean-alien-life-not-so-fast\/\">exoplanets<\/a><span>\u00a0<\/span>were found using the transit method\u200a\u2014\u200asearching for periodic dips in brightness from a star as a planet passes \u201cin front\u201d of it, as seen from Earth by astronomers (the human kind).<\/p>\n<p class=\"graf graf--p\">Because planets need to be perfectly placed to block out light from their star as seen from Earth, only a small fraction of planetary systems can be identified by this method. And, the systems we could use to find transiting exoplanets will change (slowly) over time.<\/p>\n<p class=\"graf graf--p\">This same geometry that affects human<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/thecosmiccompanion.net\/meet-the-chinese-space-station-telescope-chinas-own-hubble\/\">astronomers<\/a><span>\u00a0<\/span>would also determine the worlds from which alien astronomers would see the Earth transit in front of our own sun. This is known as the Earth Transit Zone, or ETZ. These worlds might typically spend 1,000 years within the ETZ before stellar motions moved worlds out of alignment.<\/p>\n<p>\u00a0<\/p>\n<figure class=\"post-image post-mediaBleed aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-featured_img wp-image-1358608 js-lazy\" alt=\"\" width=\"796\" height=\"339\" sizes=\"auto, (max-width: 796px) 100vw, 796px\" src=\"https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-796x339.jpeg\" srcset=\"https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-796x339.jpeg 796w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-280x119.jpeg 280w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-540x230.jpeg 540w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-270x115.jpeg 270w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800.jpeg 800w\"\/><figcaption>Credit:  NASA Ames<\/figcaption><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thenextweb.com\/news\/#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fspace%2F2021%2F06%2F29%2Falien-astronomers-discovering-life-earth-syndication%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: By measuring the dip in light created when an exoplanet passes in front of a star (as seen from Earth), astronomers (no matter their home world) can piece together information about distant worlds.\" data-title=\"Share By measuring the dip in light created when an exoplanet passes in front of a star (as seen from Earth), astronomers (no matter their home world) can piece together information about distant worlds. on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share By measuring the dip in light created when an exoplanet passes in front of a star (as seen from Earth), astronomers (no matter their home world) can piece together information about distant worlds. on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>By measuring the dip in light created when an exoplanet passes in front of a star (as seen from Earth), astronomers (no matter their home world) can piece together information about distant worlds.<\/figcaption><noscript><img loading=\"lazy\" decoding=\"async\" class=\"size-featured_img wp-image-1358608\" src=\"https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-796x339.jpeg\" alt=\"\" width=\"796\" height=\"339\" srcset=\"https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-796x339.jpeg 796w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-280x119.jpeg 280w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-540x230.jpeg 540w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800-270x115.jpeg 270w, https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/Transit-Infographic-NASA-Ames-800.jpeg 800w\"\/><\/noscript><\/figure>\n<p>\u201cThe universe is dynamic. Stars move, we move. First the Earth moves around the sun, but the sun moves around the center of our galaxy,\u201d\u00a0explains says<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/www.technologyreview.com\/2021\/06\/23\/1026947\/radio-waves-earth-stars-exoplanets\/\">Lisa Kaltenegger<\/a>, director of the Carl Sagan Institute at Cornell University.<\/p>\n<p class=\"graf graf--p\">Kaltenegger and Dr. Jackie Faherty of the American Museum of Natural History compiled a list of<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/youtu.be\/nWHVuFv0F38\">stars<\/a><span>\u00a0<\/span>from which the Earth could be seen transiting in front of the Sun by astronomers (the alien kind).<\/p>\n<p class=\"graf graf--p\">Of these stars, seven are known to possess exoplanets orbiting within the habitable zones from their star, where water is likely to pool on their surface.<\/p>\n<p class=\"graf graf--p\">One of every four stars is now believed to host planets in the \u201c<a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/24-planets-that-may-be-more-habitable-than-earth-900068802301?source=friends_link&amp;sk=6c4f930b7257e9274493bbd2d65bd8f8\">Goldilocks Zone<\/a>\u201d\u200a\u2014\u200awhere temperatures are neither too hot, nor too cold, for life as we know it to exist.<\/p>\n<p class=\"graf graf--p\">One big question to be answered by astronomers (possibly both kinds?) is how to identify which far-flung planets are home to planets within this habitable zone.<\/p>\n<p class=\"graf graf--p graf--startsWithDoubleQuote\">\u201cIn the search for life in the cosmos, transiting exoplanets are currently our best targets. With thousands already detected, our search is entering a new era of discovery with upcoming large telescopes that will look for signs of \u2018life\u2019 in the atmospheres of transiting worlds,\u201d researchers describe in<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/www.nature.com\/articles\/s41586-021-03596-y.epdf?sharing_token=ahejvCD40AVl9Fn8Yh5Yb9RgN0jAjWel9jnR3ZoTv0OKnW1GRR1NnX4ThaAFdqJuomQ3HL2rO7RBRk3bQQEqNOC3foJjYTV6ylhL7RdW53q2VYdM3Z0556fXfZJyn_KfaiCp5Lg0F6eW88JAt4NWiDni5itC5H6ZK0IVKLUGcwKUS-o0Xj4LuVUP1sCjJGA7Wtq-MLVb4SXUdNYxhzZNso1Ei3YCQtqbeiUsvHHzZrU%3D&amp;tracking_referrer=www.technologyreview.com\">Nature<\/a>.<\/p>\n<h2 class=\"graf graf--h4\"><span class=\"ez-toc-section\" id=\"It_Just_Happens%E2%80%8A%E2%80%94%E2%80%8AYou_Cant_Planet\"><\/span>It Just Happens\u200a\u2014\u200aYou Can\u2019t\u00a0Planet<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"graf graf--p\">As planets pass between their star as seen from Earth, astronomers (the human kind) are able to analyze light passing through the atmosphere of an exoplanet. Doing so allows researchers to study the gases which surround the planet.<\/p>\n<p class=\"graf graf--p\">For two billion years, primitive life existed on Earth, but it wasn\u2019t until cyanobacteria began to dominate the planet that<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/thecosmiccompanion.net\/making-oxygen-on-mars-takes-moxie\/\">oxygen<\/a><span>\u00a0<\/span>(a biological waste product) became a dominant component of our atmosphere.<\/p>\n<p class=\"graf graf--p\">Today, many astronomers (at LEAST the human kind) consider oxygen and methane to be telltale signs of life on other worlds. Such studies have the advantage of being able to detect life too primitive to build radio telescopes.<\/p>\n<p class=\"graf graf--p\">On more developed worlds, radio astronomers (the alien kind) might also detect radio and television waves coming from<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/anchor.fm\/the-cosmic-companion\/episodes\/Brittany-Zimmerman--CEO-of-Yummet--Talks-Space-Exploration-and-Saving-Earth---The-Cosmic-Companion-22-June-2021-e138f5d\">Earth<\/a>. This study notes these waves have already reached 75 stellar systems home to habitable planets, since the beginning of high-powered radio transmissions here on our home planet.<\/p>\n<p><iframe loading=\"lazy\" title=\"The TRAPPIST-1 System - Dr. Eric Agol U of Washington - The Cosmic Companion Feb. 9, 2021\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/c5YZK4916d8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Some of the stars identified in the study are among the most-intriguing targets in the search for extraterrestrial life.<\/p>\n<p>\u201cHere we report that 1,715 stars within [326 light years] from the Sun are in the right position to have spotted life on a transiting Earth since early human civilization (about 5,000 years ago), with an additional 319 stars entering this special vantage point in the next 5,000 years. Among these stars are seven known exoplanet hosts, including Ross-128, which saw Earth transit the Sun in the past, and Teegarden\u2019s Star and Tr<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>ist-1, which will start to see it in 29 and 1,642 years, respectively,\u201d researchers describe in\u00a0<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/www.nature.com\/articles\/s41586-021-03596-y\">Nature<\/a>.<\/p>\n<p class=\"graf graf--p\">Teegarden\u2019s Star, a dim red dwarf just 12.5 light years from Earth, is the 25th closest planetary system to Earth. Orbiting this star are at least two<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/another-18-earth-sized-planets-discovered-one-is-epic-16a2456c3e89?source=friends_link&amp;sk=9a5bd26381216af821993587ee67af43\">Earth-mass worlds<\/a>. In 29 years, any extraterrestrial astronomers on those worlds will see the Earth start to transit the Sun. This alignment will last 410 years, giving any astronomers on those exoplanets plenty of time to detect life on our own world.<\/p>\n<p class=\"graf graf--p\">Another red dwarf star, Ross 128, just 11 light years from Earth, is home to a world just 80 percent more massive than Earth\u200a\u2014\u200athe second-closest Earth-sized world known outside our solar system.<\/p>\n<p class=\"graf graf--p\">Astronomers there would have seen our planet start to transit the<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/deep-radio-images-of-sun-suggest-our-star-is-hiding-a-secret-bdfe468e8b1f?source=friends_link&amp;sk=f80be6da188445ec59dfc42bfe2f6853\">Sun<\/a><span>\u00a0<\/span>3,057 years ago, as the Zhou Dynasty began in China, David, King of Israel, is born, and the Phoenician alphabet is first developed.<\/p>\n<p class=\"graf graf--p\">Inhabitants of this world (Ross128arians?) would have lost their views of Earth transiting the Sun around 900 years ago, as astronomer Walcher of Malvern (almost assuredly human) developed the system of latitude and longitude that we still use today to describe locations on Earth.<\/p>\n<p><iframe loading=\"lazy\" title=\"The Planets of TRAPPIST-1 - A Family Photo Album\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/LChnuWGRZRQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p class=\"graf graf--p\">The TRAPPIST-1 system\u200a\u2014\u200aone of the most intriguing targets in the search for extraterrestrial life\u200a\u2014\u200ais found 45 light years from Earth. This system is known to house at least seven Earth-sized worlds\u200a\u2014\u200afour in the<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/super-earth-g-9-40b-confirmed-using-habitable-zone-planet-finder-7711529db795?source=friends_link&amp;sk=03b7f6e0bfd60f3a15482c6556cdc3cf\">habitable zone<\/a><span>\u00a0<\/span>where water is more likely to form on their surface.<\/p>\n<p class=\"graf graf--p\">Astronomers there (almost assuredly NOT human) will see the Earth first transit the Sun in the year 3663, a sight that will last nearly 24 centuries, until the year 4392.<\/p>\n<h2 class=\"graf graf--h4\"><span class=\"ez-toc-section\" id=\"Just_Squint_a_Bit%E2%80%8A%E2%80%94%E2%80%8AYoull_See_It\"><\/span>Just Squint a Bit\u200a\u2014\u200aYou\u2019ll See\u00a0It<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"graf graf--p\">Data from several spacecraft, as well as observations here on Earth, are utilized to find planets orbiting alien stars.<\/p>\n<p class=\"graf graf--p\">While the<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/good-night-dear-kepler-planet-hunting-telescope-sends-last-images-to-earth-is-that-tetris-7f843416b1c1?source=friends_link&amp;sk=7022e1e914a76ab3814f465350439756\">Kepler spacecraft\u200a<\/a>\u2014\u200athe current leader in exoplanet finds\u200a\u2014\u200asearched one small cone of targets over long periods of time, the GAIA spacecraft from the ESA takes a wider view of the sky.<\/p>\n<p><iframe loading=\"lazy\" title=\"Outside View of Earth&#039;s Transit\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/rEGQp_3CVmI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p class=\"graf graf--p graf--startsWithDoubleQuote\">\u201cGaia has provided us with a precise map of the Milky Way galaxy,\u201d Faherty said, \u201callowing us to look backward and forward in time, and to see where stars had been located and where they are going\u2026 Our solar neighborhood is a dynamic place where stars enter and exit that perfect vantage point to see Earth transit the Sun at a rapid pace,\u201d<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/news.cornell.edu\/stories\/2021\/06\/exoplanets-get-cosmic-front-row-seat-find-backlit-earth\">Faherty explains<\/a>.<\/p>\n<p class=\"graf graf--p\">Even today, there are several methods of finding exoplanets, and an alien intelligence would likely have additional means to find life on other worlds.<\/p>\n<p class=\"graf graf--p\">So, any alien astronomers on other worlds would likely have other means, other than transits, to detect life on Earth. This would suggest life on Earth may be visible from a large number of worlds where<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/exoplanet-found-by-tess-orbiting-a-pair-of-stars-like-tatooine-f8fa792ab52e?source=friends_link&amp;sk=d568b0514135046828878e0e07d37833\">transits<\/a><span>\u00a0<\/span>by our planet are not seen. However, studying the atmosphere of the Earth without a transit would be challenging (at best) for astronomers on other worlds.<\/p>\n<p class=\"graf graf--p\">As astronomers (the human kind) continue to explore planets around other stars, they will soon be aided by the<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/medium.com\/the-cosmic-companion\/james-webb-space-telescope-now-assembled-whats-next-909b2cd4c10b?source=friends_link&amp;sk=717bb92ac90634318ce99744cbc4b7d9\">James Webb Space Telescope (JWST)<\/a>, due for launch this Autumn.<\/p>\n<p class=\"graf graf--p\">A successor to the now-ailing Hubble Space Telescope, this revolutionary instrument will carefully examine the atmospheres of the transiting exoplanets, searching for the chemical markers of life.<\/p>\n<p class=\"graf graf--p\">Another, highly ambitious, called the Breakthrough Starshot initiative\u200a\u2014\u200aaims to send a tiny spacecraft to the nearest star system\u200a\u2014\u200aProxima Centauri, known to host at least one<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" class=\"markup--anchor markup--p-anchor\" href=\"https:\/\/youtu.be\/Nqlkv8rx13s\">exoplanet<\/a>\u200a\u2014\u200ato explore that star system firsthand.<\/p>\n<p><em>This article was originally published on<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thecosmiccompanion.net\/\">The Cosmic Companion<\/a><span>\u00a0<\/span>by James Maynard, the founder and publisher of The Cosmic Companion. He is a New England native turned desert rat in Tucson, where he lives with his lovely wife, Nicole, and<span>\u00a0<\/span><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thecosmiccompanion.net\/category\/cosmic-comics\/max-on-mars\/\">Max the Cat<\/a>. You can read the original article<span><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thecosmiccompanion.net\/where-do-alien-astronomers-need-to-be-to-find-life-on-earth\/\">\u00a0here<\/a>.<\/span><\/em><\/p>\n<\/div>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/thenextweb.com\/news\/alien-astronomers-discovering-life-earth-syndication\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;#How would alien astronomers go about discovering life on Earth?&#8221; As astronomers search distant star systems looking for exoplanets, many hope to find the telltale signs of life on other worlds. A new study examines this search from the opposite point of view\u200a\u2014\u200aidentifying worlds where extraterrestrial astronomers may be able to discover life on Earth&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":286725,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img-cdn.tnwcdn.com\/image\/tnw?filter_last=1&fit=1280,640&url=https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/06\/alien-explorer.jpg&signature=4d7ec0b7d7dae3b3fe9476c2068754ec","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-286724","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/286724","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=286724"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/286724\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/286725"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=286724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=286724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=286724"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}