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<!DOCTYPE html> <html> <head> <title> LIGO Lab | Caltech | MIT </title> <meta content='text/html; charset=utf-8' http-equiv='Content-Type'> <meta content='IE=edge,chrome=1' http-equiv='X-UA-Compatible'> <meta content='width=device-width,initial-scale=1' name='viewport'> <link href='/assets/favicon/apple-icon-57x57-78f4f4b87ac8ed844b6956a7674c7917.png' rel='apple-touch-icon' sizes='57x57'> <link href='/assets/favicon/apple-icon-60x60-baeef6b0ff7698cde542ab23bfd1ac2e.png' rel='apple-touch-icon' sizes='60x60'> <link href='/assets/favicon/apple-icon-72x72-afca3f570bb63d57879adf790092c142.png' rel='apple-touch-icon' sizes='72x72'> <link href='/assets/favicon/apple-icon-76x76-83a240ca1213d07596638e2a88fb2ee0.png' rel='apple-touch-icon' sizes='76x76'> <link href='/assets/favicon/apple-icon-114x114-448275f006a71b347beb5ebcf39ea7c6.png' rel='apple-touch-icon' sizes='114x114'> <link href='/assets/favicon/apple-icon-120x120-c755d8111e0c6a637b20bb11746916d7.png' rel='apple-touch-icon' sizes='120x120'> <link href='/assets/favicon/apple-icon-144x144-9411a2cca9812c2d8a93b2107d6bbb4f.png' rel='apple-touch-icon' sizes='144x144'> <link href='/assets/favicon/apple-icon-152x152-54b1bcb657527af0ad2609696784139c.png' rel='apple-touch-icon' sizes='152x152'> <link href='/assets/favicon/apple-icon-180x180-568cddf25b1a49a216aa605077b21080.png' rel='apple-touch-icon' sizes='180x180'> <link href='/assets/favicon/android-icon-192x192-e7c2dc95a016d6eec9f1445176be076e.png' rel='icon' sizes='192x192' type='image/png'> <link href='/assets/favicon/favicon-32x32-e848538e81000c6ab1f14dfd377f21d7.png' rel='icon' sizes='32x32' type='image/png'> <link href='/assets/favicon/favicon-96x96-d2b6879752189dc947edd4ea59d46c34.png' rel='icon' sizes='96x96' type='image/png'> <link href='/assets/favicon/favicon-16x16-1801d16e258b8a8210ead9b42899ac2d.png' rel='icon' sizes='16x16' type='image/png'> <link href='/manifest.json' rel='manifest'> <meta content='#ffffff' name='msapplication-TileColor'> <meta content='/assets/favicon/ms-icon-144x144-9411a2cca9812c2d8a93b2107d6bbb4f.png' name='msapplication-TileImage'> <meta content='#ffffff' name='theme-color'> <meta content='LIGO Lab | Caltech' property='og:site_name'> <meta content='https://www.ligo.caltech.edu/assets/ligo_default_social_image-fa8a65b147c61b5147e1d43f9e7afc98.jpg' property='og:image'> <meta content='https://www.ligo.caltech.edu/assets/ligo_default_social_image-fa8a65b147c61b5147e1d43f9e7afc98.jpg' name='image'> <meta content='website' property='og:type'> <meta content='The Laser Interferometer Gravitational-Wave Observatory (LIGO) consists of two widely separated installations within the United States — one in Hanford Washington and the other in Livingston, Louisiana — operated in unison as a single observatory. 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Funded by the National Science Foundation, LIGO is an international resource for both physics and astrophysics.' property='og:description'> <link href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,700italic,400,300,700|Play" media="screen" rel="stylesheet" type="text/css" /> <link href="/assets/application-07bcd3ad523a6fa1ea1cfa6e8ee24e1c.css" media="screen" rel="stylesheet" type="text/css" /> <meta content="authenticity_token" name="csrf-param" /> <meta content="FTzygNInobGw5nrjdbhL3vqvcoLPZwtEPxB/1NmHJH0=" name="csrf-token" /> </head> <body class='site_color_purple'> <div class='flash_messages'> </div> <div class='ligo_bar'> <div class='container'> <div class='row'> <div class='span3'> <a href="/" class="current_partner">LIGO Caltech</a> </div> <div class='span6'> <div class='right other_ligo'> <a href="/WA">Hanford Observatory</a> <span> | </span> <a href="/LA">Livingston Observatory</a> <span> | </span> <a href="/MIT">LIGO MIT</a> </div> </div> <div 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src="/system/news_items/images/219/slide_mobile_image/tidal_deformation2.jpg?1712256928" /> <div class='clear'></div> </div> <div class='main_image visible-tablet'> <img alt="Tidal_deformation2" src="/system/news_items/images/219/slide_tablet_image/tidal_deformation2.jpg?1712256928" /> <div class='clear'></div> </div> <div class='main_image visible-desktop'> <img alt="Tidal_deformation2" src="/system/news_items/images/219/slide_small_image/tidal_deformation2.jpg?1712256928" /> <div class='clear'></div> </div> <div class='main_image visible-desktop-large'> <img alt="Tidal_deformation2" src="/system/news_items/images/219/slide_large_image/tidal_deformation2.jpg?1712256928" /> <div class='clear'></div> </div> <div class='slide_details right'> <h3> LIGO-Virgo-KAGRA (LVK) Collaboration Detected a Remarkable Gravitational-Wave Signal </h3> <p> <strong> News Release • April 5, 2024 </strong> </p> <p> </p> </div> </a></div> </li> <li> <div class='slide'> <a href="/news/ligo20231023" target=""><div class='main_image visible-phone'> <img alt="Picture1_georgiamansell" src="/system/news_items/images/215/slide_mobile_image/Picture1_GeorgiaMansell.jpg?1697147770" /> <div class='clear'></div> </div> <div class='main_image visible-tablet'> <img alt="Picture1_georgiamansell" src="/system/news_items/images/215/slide_tablet_image/Picture1_GeorgiaMansell.jpg?1697147770" /> <div class='clear'></div> </div> <div class='main_image visible-desktop'> <img alt="Picture1_georgiamansell" src="/system/news_items/images/215/slide_small_image/Picture1_GeorgiaMansell.jpg?1697147770" /> <div class='clear'></div> </div> <div class='main_image visible-desktop-large'> <img alt="Picture1_georgiamansell" src="/system/news_items/images/215/slide_large_image/Picture1_GeorgiaMansell.jpg?1697147770" /> <div class='clear'></div> </div> <div class='slide_details right'> <h3> LIGO Surpasses the Quantum Limit </h3> <p> <strong> Feature Story • October 23, 2023 </strong> </p> <p> New technology in operation at LIGO is tackling quantum mechanical noise, enabling LIGO to probe a larger volume of the Universe and greatly boost the observatory's ability to study the exotic events that shake space and time. </p> </div> </a></div> </li> <li> <div class='slide'> <a href="/news/ligo20230417" target=""><div class='main_image visible-phone'> <img alt="Ligo_india_site_design_rendering_copy" src="/system/news_items/images/210/slide_mobile_image/LIGO_India_site_design_rendering_copy.jpg?1681676539" /> <div class='clear'></div> </div> <div class='main_image visible-tablet'> <img alt="Ligo_india_site_design_rendering_copy" src="/system/news_items/images/210/slide_tablet_image/LIGO_India_site_design_rendering_copy.jpg?1681676539" /> <div class='clear'></div> </div> <div class='main_image visible-desktop'> <img alt="Ligo_india_site_design_rendering_copy" src="/system/news_items/images/210/slide_small_image/LIGO_India_site_design_rendering_copy.jpg?1681676539" /> <div class='clear'></div> </div> <div class='main_image visible-desktop-large'> <img alt="Ligo_india_site_design_rendering_copy" src="/system/news_items/images/210/slide_large_image/LIGO_India_site_design_rendering_copy.jpg?1681676539" /> <div class='clear'></div> </div> <div class='slide_details right'> <h3> India Approves Construction of Its Own LIGO </h3> <p> <strong> Feature Story • April 17, 2023 </strong> </p> <p> LIGO-India will greatly improve the localization of sources of gravitational waves </p> </div> </a></div> </li> <li> <div class='slide'> <div class='main_image'> <img alt="What_slide" src="/assets/what_slide-ce3596915df0767051e5d7d29c27958a.jpg" /> <div class='clear'></div> </div> <div class='slide_details right'> <a href="/page/what-are-gw" class="home_page">What are gravitational waves? </a><a href="/page/why-detect-gw" class="home_page">Why are we looking for them? </a><a href="/page/science-impact" class="home_page">LIGO's Impact </a><a href="https://chirp.sr.bham.ac.uk/latest" class="home_page" target="_LIGO_lab">Public Alerts </a></div> <div class='clear'></div> </div> </li> </ul> </div> <div class='slide_controls'> <a href="#" class="slide_previous" onclick="$('.flexslider').flexslider('previous');"><i class='fa fa-chevron-left'></i> </a><a href="#" class="slide_control active" id="slide_control_0">1 </a><a href="#" class="slide_control" id="slide_control_1">2 </a><a href="#" class="slide_control" id="slide_control_2">3 </a><a href="#" class="slide_control" id="slide_control_3">4 </a><a href="#" class="slide_next" onclick="$('.flexslider').flexslider('next');"><i class='fa fa-chevron-right'></i> </a></div> </div> </div> <div class='span4'> <div class='panel highlighted_news'> <div class='heading visible-phone'> News </div> <a href="/news/ligo20241125" target=""><div class='thumb'> <img alt="Louis_detchar_news_cover" src="/system/news_items/images/221/highlight/Louis_DetChar_News_Cover.png?1732564172" /> <div class='more'> Learn More <i class='fa fa-black fa-arrow-right'></i> </div> </div> <h3> Louis Dartez wins LIGO Lab 2024 Award for Excellence in Detector Characterization and Calibration </h3> <p> <strong> News Release • November 25, 2024 </strong> </p> <p> </p> <div class='clear'></div> </a></div> </div> <div class='span4'> <div class='panel news_headlines'> <div class='heading'> Headlines </div> <a href="/news/ligo20241016" target=""><h3> Fred Raab Receives 2025 Isaacson Award in GW Science from APS </h3> <p> <strong> News Release • October 16, 2024 </strong> </p> </a><a href="/news/ligo20240403" target=""><h3> LIGO-Virgo-KAGRA to Resume O4 After Mid-Run Break </h3> <p> <strong> News Release • April 3, 2024 </strong> </p> </a><a href="/news/ligo20240125" target=""><h3> LIGO Congratulates LISA Mission Team </h3> <p> <strong> News Release • January 25, 2024 </strong> </p> </a><a href="/news/ligo20231121" target=""><h3> Winner of the 2023 Award for Excellence in Detector Characterization and Calibration Announced </h3> <p> <strong> News Release • November 21, 2023 </strong> </p> </a><a href="/news/ligo20231004" target=""><h3> LIGO Documentary Released </h3> <p> <strong> News Release • October 4, 2023 </strong> </p> </a></div> </div> <div class='span4'> <div class='raw'> <div class="panel primary_color_solid"> <div class="heading">Featured Press Releases</div> <ul> <li><a href="/news/ligo20200623">GW190814; Mystery Object in the Mass Gap</a></li> <li><a href="/news/ligo20210629">GW200105 and GW200115: NSBH binaries</a></li> <li><a href="/page/press-release-gw170817">GW170817: First BNS GW observation with EM counterparts </a></li> <li><a href="/page/press-release-gw170817">Nobel Prize</a></li> <li><a href="/detection">GW150914 detection portal</a></li> </ul> </div> <div class="panel primary_color_light"> <div class="heading">Researchers</div> <ul> <li><a href="https://www.ligo.org">LIGO Scientific Collaboration</a></li> <li><a href="https://dcc.ligo.org/LIGO-M2200155/main/public" target="_blank">Citing the LIGO–Virgo–KAGRA Collaboration</a></li> <li><a href="https://www.gw-openscience.org">LIGO Open Science Center</a></li> <li><a href="https://www.gw-openscience.org/detector_status/">Observatory Status</a></li> <li><a href="http://caltech.sharepoint.com/sites/LIGO/BB?OR=Teams-HL&CT=1713566232675&clickparams=eyJBcHBOYW1lIjoiVGVhbXMtRGVza3RvcCIsIkFwcFZlcnNpb24iOiI0OS8yNDAzMTQxNDcxOCIsIkhhc0ZlZGVyYXRlZFVzZXIiOmZhbHNlfQ%3D%3D" target="_blank">LIGO Laboratory internal bulletin board</a> (requires access.caltech credentials)</li> </ul> </div> <div class="panel dark_color"> <div class="heading">Quick links</div> <ul> <li><a href="/page/what-are-gw">What are gravitational waves?</a></li> <li><a href="/page/why-detect-gw">Why are we looking for them?</a></li> <li><a href="/page/science-impact">LIGO's impact</a></li> <li><a href="https://www.ligo.caltech.edu/page/GWPhoneAlerts">Public alerts of candidate events</a></li> <li><a href="/page/observing-plans">Current and future observing plans</a></li> </ul>   <div class="image_container center"><a alt="2017 Nobel Prize in Physics awarded to LIGO co-founders" href="/page/press-release-2017-nobel-prize#cit" title="Nobel Prize"><img alt="Nobel Prize" src="/system/media_files/binaries/471/original/homepage-banner-perm-sm.jpg?1582056090" title="Nobel Prize" /></a></div> <ul> </ul> </div> <p> </p> <div class="heading"> </div> <ul> </ul> <p> </p> </div> </div> </div> </div> </div> </div> <div class='footer panel primary_color_light'> <div class='container'> <div class='row'> <div class='span6'> <div class='row'> <div class='span6'> <h6> <a href="/page/contact">Contact LIGO Caltech</a> </h6> <div class='location_details'> <p> LIGO Laboratory <br> MC 100-36 <br> California Institute of Technology <br> Pasadena, CA 91125 </p> </div> <h6> Information: <a href="tel://6263952129">(626) 395-2129</a> </h6> </div> </div> <p class='policy_links'> <a href="/page/employment">Careers</a> </p> <p> <a 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