{"id":4195,"date":"2019-10-31T14:28:37","date_gmt":"2019-10-31T14:28:37","guid":{"rendered":"http:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/?p=4195"},"modified":"2022-04-13T15:57:43","modified_gmt":"2022-04-13T14:57:43","slug":"pythagorean-astronomy-interstellar-comets-black-holes-and-gravitational-waves","status":"publish","type":"post","link":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/2019\/10\/31\/pythagorean-astronomy-interstellar-comets-black-holes-and-gravitational-waves\/","title":{"rendered":"Pythagorean Astronomy: interstellar comets, black holes and gravitational waves"},"content":{"rendered":"<div id=\"attachment_4196\" class=\"wp-caption alignright\" ><a href=\"https:\/\/www.ligo.caltech.edu\/image\/ligo20190326b\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4196 size-medium\" src=\"http:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-content\/uploads\/sites\/236\/2019\/10\/LIGO_2488-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-content\/uploads\/sites\/236\/2019\/10\/LIGO_2488-300x225.jpg 300w, https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-content\/uploads\/sites\/236\/2019\/10\/LIGO_2488-451x338.jpg 451w, https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-content\/uploads\/sites\/236\/2019\/10\/LIGO_2488-768x576.jpg 768w, https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-content\/uploads\/sites\/236\/2019\/10\/LIGO_2488.jpg 900w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p class=\"wp-caption-text\">Detector engineers upgrades Advanced LIGO hardware. Image credit: LIGO\/Caltech\/MIT\/Jeff Kissel<\/p><\/div>\n<p>October 2019 saw the first all-female spacewalk, and the discover of 20 new moons of Saturn. There were also more observations of interstellar comet Borisov, and evidence for the Milky Way&#8217;s black hole having sent out a violent flare several million years ago. Chris North and Edward Gomez discuss these latest stories.<\/p>\n<p>October also saw a planned hiatus in operations of the LIGO and Virgo detectors, which are mid-way through the third observing run, looking for gravitational waves. We got an update from UBC&#8217;s <a href=\"http:\/\/jessmciver.com\/about.html\">Jess McIver<\/a> and Cardiff&#8217;s <a href=\"https:\/\/www.cardiff.ac.uk\/people\/view\/913865-macleod-duncan\">Duncan Macleod<\/a>, who are involved with the operation of the LIGO detectors.They gave an update on how the discovery of gravitational waves unfolds, and what&#8217;s planned for the rest of this observing run &#8211; including the addition of the Japanese KAGRA detector <a href=\"https:\/\/www.ligo.caltech.edu\/news\/ligo20191004\">later this year<\/a>.<\/p>\n<p>Professor Kip Thorne, one of the founders of LIGO, recently gave a lecture in Cardiff, which is available to <a href=\"https:\/\/www.youtube.com\/watch?v=GlmMxmWHEfg&amp;feature=youtu.be\">watch online<\/a>.<\/p>\n<audio class=\"wp-audio-shortcode\" id=\"audio-4195-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/mpeg\" src=\"http:\/\/astrog80.astro.cf.ac.uk\/pythagoras-trousers\/mp3\/Oct2019_full_PHYSX.mp3?_=1\" \/><a href=\"http:\/\/astrog80.astro.cf.ac.uk\/pythagoras-trousers\/mp3\/Oct2019_full_PHYSX.mp3\">http:\/\/astrog80.astro.cf.ac.uk\/pythagoras-trousers\/mp3\/Oct2019_full_PHYSX.mp3<\/a><\/audio>\n<p>An extended edition of an original broadcast on 31st October 2019 as part of Pythagoras&#8217; Trousers on Radio Cardiff.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>October 2019 saw the first all-female spacewalk, and the discover of 20 new moons of Saturn. There were also more observations of interstellar comet Borisov, and evidence for the Milky Way&#8217;s black hole having sent out a violent flare several million years ago. Chris North and Edward Gomez discuss these latest stories. October also saw<\/p>\n","protected":false},"author":273,"featured_media":4196,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[5,30,37,32],"tags":[47,144,143,140,141,75,142,126],"class_list":["post-4195","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomy-2","category-media","category-podcasts","category-pythagorean-astronomy","tag-black-hole","tag-borisov","tag-gravitational-wave","tag-interstellar-comet","tag-kagra","tag-ligo","tag-spacewalk","tag-virgo"],"jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/p4hmOz-15F","jetpack_sharing_enabled":true,"meta_box":[],"jetpack_featured_media_url":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-content\/uploads\/sites\/236\/2019\/10\/LIGO_2488.jpg","_links":{"self":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts\/4195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/users\/273"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/comments?post=4195"}],"version-history":[{"count":3,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts\/4195\/revisions"}],"predecessor-version":[{"id":4199,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/posts\/4195\/revisions\/4199"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/media\/4196"}],"wp:attachment":[{"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/media?parent=4195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/categories?post=4195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.cardiff.ac.uk\/physicsoutreach\/wp-json\/wp\/v2\/tags?post=4195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}