{"id":2809,"date":"2021-02-03T21:21:47","date_gmt":"2021-02-03T21:21:47","guid":{"rendered":"https:\/\/thenextweb.com\/?p=1337448"},"modified":"2021-02-03T21:21:47","modified_gmt":"2021-02-03T21:21:47","slug":"ai-detects-1210-new-potential-gravitational-lenses-in-the-search-for-dark-matter","status":"publish","type":"post","link":"https:\/\/www.londonchiropracter.com\/?p=2809","title":{"rendered":"AI detects 1,210 new potential gravitational lenses in the search for dark matter"},"content":{"rendered":"\n<div><img decoding=\"async\" src=\"https:\/\/img-cdn.tnwcdn.com\/image\/neural?filter_last=1&amp;fit=1280%2C640&amp;url=https%3A%2F%2Fcdn0.tnwcdn.com%2Fwp-content%2Fblogs.dir%2F1%2Ffiles%2F2021%2F02%2F40501331252_d8f39000a4_o.jpg&amp;signature=ebda98133c072558a605d3832c8c18ba\" class=\"ff-og-image-inserted\"><\/div>\n<p>AI has identified more than 1,2o0 new possible gravitational lenses, which could help unravel the mysteries of dark&nbsp;matter.<\/p>\n<p>The lenses are formed when a vast amount of matter \u2014 like a cluster of galaxies \u2014&nbsp;bends the direction of light traveling from more distant galaxies. The lenses then typically appear as arcs and streaks.<\/p>\n<p>These images can help scientists infer the existence of dark matter \u2014 which the naked eye can\u2019t see \u2014 by observing its gravitational effects on the visible matter.<\/p>\n<p>Unfortunately, they\u2019re seriously hard to spot.<\/p>\n<p>\u201cOnly when a galaxy is hidden directly behind a giant galaxy is a lens possible to see,\u201d said Xiaosheng Huang from the University of San Francisco, the study lead author. \u201cWhen we started this project in 2018, there were only about 300 confirmed strong lenses.\u201d<\/p>\n<p><em>[Read: <a href=\"https:\/\/thenextweb.com\/shift\/2021\/02\/01\/how-much-does-it-cost-to-buy-electric-car\/\">How much does it cost to buy, own, and run an EV? It\u2019s not as much as you think<\/a>]<\/em><\/p>\n<p>The researchers tried to increase the number by using&nbsp;deep residual neural networks to scan survey data.<\/p>\n<p>The<span>y<\/span>&nbsp;first trained the model on 632 observed lenses and lens candidates, as well as 21,000 non-lenses.<\/p>\n<p>They then applied the neural networks to&nbsp;a giant map of the sky&nbsp;<span>called the&nbsp;<\/span><a href=\"https:\/\/noirlab.edu\/public\/projects\/desi\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">DESI<\/a><span>&nbsp;Legacy Imaging Surveys.<\/span><\/p>\n<p>The system detected&nbsp;1,210 new&nbsp;candidate lenses \u2014 more than double the number of known gravitational lenses. Their discovery could help astronomers learn more about the mysterious dark matter.<\/p>\n<p>\u201cI really thought it would be many years before anyone would find this many gravitational lenses,\u201d said David Schlegel, a senior physicist at Berkeley Lab who participated in this study.<\/p>\n<p>\u201cIt\u2019s just amazing to know that you\u2019re seeing, very clearly, space itself being warped by a massive object.\u201d<\/p>\n<p>You can read the study paper on the pre-print server <a href=\"https:\/\/arxiv.org\/pdf\/2005.04730.pdf\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">arXiv<\/a>.<\/p>\n<p><em>HT \u2013 <a href=\"https:\/\/futurism.com\/the-byte\/astronomers-find-1200-dark-matter\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Futurism<\/a><\/em><\/p>\n<p class=\"c-post-pubDate\"> Published February 3, 2021 \u2014 21:21 UTC <\/p>\n<p> <a href=\"https:\/\/thenextweb.com\/neural\/2021\/02\/03\/ai-detects-1210-new-potential-gravitational-lenses-in-the-search-for-dark-matter\/\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>AI has identified more than 1,2o0 new possible gravitational lenses, which could help unravel the mysteries of dark&nbsp;matter. The lenses are formed when a vast amount of matter \u2014 like a cluster&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2810,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=\/wp\/v2\/posts\/2809"}],"collection":[{"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2809"}],"version-history":[{"count":0,"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=\/wp\/v2\/posts\/2809\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=\/wp\/v2\/media\/2810"}],"wp:attachment":[{"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2809"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2809"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.londonchiropracter.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}