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<span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Dear colleagues, </span>
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<p dir="ltr" style="line-height: 1.38; margin-top: 0pt;
margin-bottom: 0pt;"><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">The fourth installment of the two-week workshop “New frontiers in strong gravity” will take place in Benasque, Spain, from 19–31 July 2026 at the Science Center in Benasque (</span><a href="https://urldefense.com/v3/__https://benasque.org/new_general/cgi-bin/years.pl?ano=2026__;!!DZ3fjg!9g32cx5BrYn7gFyI0VOlfXI5guLtbBvt14vI70CZG17PDB6DzZ-z-7ujvRybLEi93RRbaymAup7XZO8$" style="text-decoration: none;" moz-do-not-send="true"><span style="font-size: 11pt; font-family: Arial, sans-serif; color: rgb(17, 85, 204); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; text-decoration: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space: pre-wrap;">https://benasque.org/new_general/cgi-bin/years.pl?ano=2026</span></a><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">) in the Spanish Pyrenees. The registration will open in Spring 2026.</span></p>
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<p dir="ltr" style="line-height: 1.38; margin-top: 0pt;
margin-bottom: 0pt;"><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">The goal of the workshop is to foster new ideas and collaborations by bringing together experts across different disciplines, including gravity, gravitational wave astrophysics, numerical and mathematical relativity. We plan for only two talks per day, with ample time for informal discussions, sessions and collaborations. We aim at creating a diverse and inclusive meeting that thrives through communication and discussion, and we would greatly welcome participation and contributions from different communities, as well as researchers at different career stages. </span></p>
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<p dir="ltr" style="line-height: 1.38; margin-top: 0pt;
margin-bottom: 0pt;"><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Topics planned for this installment include:</span></p>
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<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Precision GW modeling</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Future GW facilities</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">New detector proposals (atom IFOs, lunar, high frequency, deciHz, μHz) and sources</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Future data analysis</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Tests of beyond-GR</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Cosmology</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">PBHs/Memory Burden</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Formal mathematical relativity, perturbative methods (PN, PM)</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Memory, tails, other soft effects</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Analog gravity</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Environmental effects (dark matter halos, accretion disks)</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Scattering and Amplitudes</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">Developments in quantum gravity</span></p></li>
<li dir="ltr" aria-level="1" style="list-style-type: disc; font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;"><p dir="ltr" role="presentation" style="line-height: 1.38; background-color: rgb(255, 255, 255); margin-top: 0pt; margin-bottom: 0pt;"><span style="font-size: 11pt; color: rgb(34, 34, 34); font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">New developments in NR / GPU computing</span></p></li>
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<p dir="ltr" style="line-height: 1.38; margin-top: 0pt;
margin-bottom: 0pt;"><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">We would appreciate it if you could kindly note the dates if you plan to attend and forward the announcement to interested researchers in our field.</span></p>
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<p dir="ltr" style="line-height: 1.38; margin-top: 0pt;
margin-bottom: 0pt;"><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">We look forward to welcoming you to Benasque.</span></p>
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<p dir="ltr" style="line-height: 1.38; margin-top: 0pt;
margin-bottom: 0pt;"><span style="font-size: 11pt; font-family: Arial, sans-serif; font-variant-ligatures: normal; font-variant-alternates: normal; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;">On behalf of the organisers (D. Blas, P. Figueras, S. Nissanke, L. Stein, H. Witek)</span></p>
<pre class="moz-signature" cols="72">---------------------------------------------
Dr. Helvi Witek
Associate Professor
Department of Physics
University of Illinois at Urbana-Champaign
247 Loomis Lab
1110 W Green St
Urbana, IL 61801
---------------------------------------------</pre>
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