{"id":39845,"date":"2026-08-17T13:41:58","date_gmt":"2026-08-17T13:41:58","guid":{"rendered":"https:\/\/futureknowledge.in\/?p=39845"},"modified":"2026-08-17T13:41:58","modified_gmt":"2026-08-17T13:41:58","slug":"summer-triangle-corner-deneb","status":"publish","type":"post","link":"https:\/\/futureknowledge.in\/?p=39845","title":{"rendered":"Summer Triangle Corner: Deneb"},"content":{"rendered":"<p>Speaking of long-dead stars, astronomers have detected a high-energy X-ray source in Cygnus that we can\u2019t see with our eyes or backyard telescopes, but that is detectable by NASA&#039;s Chandra X-ray Observatory. Discovered in 1971 during a rocket flight, Cygnus X-1 is the first X-ray source to be widely accepted as a black hole. This black hole is the final stage of a giant star\u2019s life, with a mass of about 20 Suns. Cygnus X-1 is spinning at a phenomenal rate \u2013 more than 800 times a second \u2013 while devouring a nearby star. Astronomically speaking, this black hole is in our neighborhood, 6,070 light years away. But it poses no threat to us, just offers a new way to study the universe.\u00a0Check out the beautiful bird in your sky this evening, and you will be delighted to add Cygnus to your go-to summer viewing list and visit NASA\u2019s\u00a0Black Hole Basics\u00a0page to learn more!<\/p>\n<p>Originally posted by Dave Prosper: May 2023Last Updated by Kat Troche: July 2026<\/p>\n<p><em>Source: <a href='https:\/\/science.nasa.gov\/solar-system\/skywatching\/night-sky-network\/summer-triangle-corner-deneb\/' target='_blank'>Read the original article on science.nasa.gov<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speaking of long-dead stars, astronomers have detected a high-energy X-ray source in Cygnus that we can\u2019t see with our eyes or backyard telescopes, but that is detectable by NASA&#039;s Chandra X-ray Observatory. Discovered in 1971 during a rocket flight, Cygnus X-1 is the first X-ray source to be widely accepted as a black hole. This [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":39846,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-39845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/futureknowledge.in\/index.php?rest_route=\/wp\/v2\/posts\/39845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/futureknowledge.in\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/futureknowledge.in\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/futureknowledge.in\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/futureknowledge.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=39845"}],"version-history":[{"count":0,"href":"https:\/\/futureknowledge.in\/index.php?rest_route=\/wp\/v2\/posts\/39845\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/futureknowledge.in\/index.php?rest_route=\/wp\/v2\/media\/39846"}],"wp:attachment":[{"href":"https:\/\/futureknowledge.in\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=39845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/futureknowledge.in\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=39845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/futureknowledge.in\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=39845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}