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Hi All,
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<div>People may be interested in the extended abstract submission deadline and other updates outline below for the APRIM2026 meeting in Hong Kong.</div>
<div><br>
</div>
<div>Cheers,</div>
<div>Sarah<br id="lineBreakAtBeginningOfMessage">
<div>
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<div>----------------------<br>
Professor Sarah Brough<br>
</div>
<div>Head of School | School of Physics</div>
<div>Chair | National Committee for Astronomy</div>
<div>Australian Observer | European Southern Observatory Council</div>
<div>AD: #G06, Old Main Building (K15) | UNSW Sydney | NSW 2052 | Australia</div>
<div>PH: +61 2 9065 2579<br>
<br>
I am sending this message now because it suits me. I don’t expect that you will read, respond to, or action it outside of your regular working hours.<br>
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<div><br>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>From:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">IAU <iau-announcements@iau.ccsend.com><br>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Subject:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;"><b>APRIM2026 Circular</b><br>
</span></div>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Date:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">27 January 2026 at 3:11:49 AM AEDT<br>
</span></div>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>To:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">s.brough@unsw.edu.au<br>
</span></div>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Reply-To:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">iauinfos@iap.fr<br>
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<div style="margin: 0px; padding: 0px; text-align: center;"><span style="font-weight: bold; font-size: 14px;">APRIM2026<span class="Apple-converted-space"> </span></span><a href="https://url.au.m.mimecastprotect.com/s/cWYiCOMKzVTZmQ9R2CvhZHGy70b?domain=np5meuhbb.cc.rs6.net" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-weight: bold; font-size: 14px; color: rgb(73, 109, 173);">Circular</a></div>
<div style="margin: 0px; padding: 0px; text-align: center;"><br>
</div>
<div style="margin: 0px; padding: 0px; text-align: center;"><span style="font-size: 12px; font-style: italic;">Advancing global frontier research and cross-regional collaboration in astronomy, astrophysics, and space science - hands across the Asia-Pacific
under the IAU</span></div>
<div style="margin: 0px; padding: 0px; text-align: center;"><br>
</div>
<div style="margin: 0px; padding: 0px; text-align: center;"><span style="font-size: 10px; font-weight: normal;">--------------------------------------------------------------------------------------------------------------------------------</span><span style="font-weight: bold; font-size: 14px;"><span><br>
</span></span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;"><span>Dear Sarah,</span></span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">Please find below some important updates regarding the<span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: bold;">Asia-Pacific Regional IAU Meeting</span><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>(</span><a href="https://url.au.m.mimecastprotect.com/s/xBI-CP7LAXfNEVrG5C1iOHxv6ih?domain=np5meuhbb.cc.rs6.net" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; color: rgb(73, 109, 173); font-weight: normal;">APRIM2026</a><span style="font-size: 11px;">).</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">Dates</span><span style="font-size: 11px;">: 4th - 8th May 2026</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">Venue</span><span style="font-size: 11px;">: Hong Kong Convention and Exhibition Centre (HKCEC), Hong Kong SAR</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">Registrations</span><span style="font-size: 11px;">: Early-bird<span class="Apple-converted-space"> </span></span><a href="https://url.au.m.mimecastprotect.com/s/Lv6YCQnMBZfljZEANSksVHGNElj?domain=np5meuhbb.cc.rs6.net" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; color: rgb(73, 109, 173); font-weight: normal;">registration</a><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>closes
on 25 February</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Important Updates</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">1. Due to high demand and enquiry, the<span class="Apple-converted-space"> </span></span><a href="https://url.au.m.mimecastprotect.com/s/RueVCROND2u0qZkmgCqtKH16roE?domain=np5meuhbb.cc.rs6.net" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; font-weight: bold; color: rgb(73, 109, 173);">abstract
submission</a><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>system has been reopened. It will now remain open until<span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: bold;">25th February
2026</span><span style="font-size: 11px;">, the same day as early bird registrations close.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">2.<span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: bold;">Space Sustainability<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">–
this theme has been elevated to a full parallel meeting and will address challenges from satellite mega-constellations and space debris with discussions on international policy, interference mitigation, orbital ecosystem viability and the serious impacts on
optical and radio astronomy.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">3.<span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: bold;">Astronomy Public Outreach and Education<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">–
There is now also a half-day specialist communication forum event added (stay tuned for further details).</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">4.<span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: bold;">Radio, mm and sub mm astronomy<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">–
There is now also a half-day specialist SKA event added (stay tuned for further details).</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Revised Key Dates</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● 25 February – Abstract submission deadline</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● 25 February – Early-bird registration deadline</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● 15 March – Deadline for visa assistance requests</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● 4-8 May – Official conference dates</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;"></span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Conference Highlights</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Distinguished Plenary Speakers: Plenary sessions will feature six laureates of the Nobel, Shaw and Gruber prizes and other eminent speakers, covering transformative discoveries across
multiple disciplines.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Strong Scientific Programme: Nine thematic tracks will be presented, including a new theme of space sustainability now elevated to a full parallel meeting based on interest and importance.
This builds on the outcomes of the<span class="Apple-converted-space"> </span></span><a href="https://url.au.m.mimecastprotect.com/s/8W5tCVARKgCkoQLwPSkuvHEplbF?domain=np5meuhbb.cc.rs6.net" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; color: rgb(73, 109, 173); font-weight: normal;">IAA-LSR
Space Debris and Sustainability Conference</a><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>held at the University of Hong Kong (HKU) in December 2024.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Forum to Establish Regional Collaborations: APRIM offers excellent opportunities for delegates to forge partnerships across the Asia-Pacific and to promote scientific exchange and interdisciplinary
cooperation.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Global Recognition: Organised under the IAU, APRIM2026 is arguably the largest astronomy conference in the Asia-Pacific.</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">APRIM2026 welcomes participation from a broad spectrum of communities</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Scientists and Researchers: Share research findings and build collaborations</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Educators and Outreach Professionals: Advance public engagement and STEM education</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Students and Early-Career Scholars: Connect with leading experts and explore academic pathways</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Engineers and Technical Experts: Discover innovations at the intersection of science and technology</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Policy Makers and Institutional Representatives: Join critical discussions on space sustainability and science policy</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Plenary Speakers</span><span style="font-weight: normal; font-size: 11px;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">(in
alphabetical order)</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Matthew Bailes (Shaw Prize Laureate in Astronomy 2023, Swinburne, Australia); Discovery of fast radio bursts</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Tamara Davis (Professor, The University of Queensland Australia)</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Yang GAO (Director of Centre for AI Robotics in Space Sustainability, Co-director of Space Science and Technology Institute, HKUST)</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Reinhard Genzel (Nobel Laureate, 2020, MPI Germany); Discovery of the supermassive black hole at the centre of our Milky Way</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Luis C. Ho (Director, Kavli Institute, Peking University, China); Observational astronomy</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Hyesung Kang (Pusan National University, South Korea); Contribution: Cosmic rays research; IAUGA 2022 National Organizing Committee chair</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Victoria Kaspi (Shaw Prize Laureate 2021, Canada) Understanding Magnetars</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Shri Kulkarni (Shaw Prize Laureate 2024, Caltech, USA); Time-domain astronomy</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Max Pettini (Gruber Cosmology Prize 2025, Cambridge, UK); Contribution: Fundamental measurements of deuterium abundance and the baryon density of the universe</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Dr. Sarah Pearce (SKA-Low, Australia); Low frequency radio astronomy</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Laura Perez (New Horizons Prize in Physics 2024, University of Chile) Planetary system formation</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Brian Schmidt (IAU President-Elect, Shaw Prize Laureate 2006, Nobel Laureate, 2011, ANU, Australia); Accelerating universe discovery</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">● Prof. Lldar Shaikhislamov (Russian Academy of Sciences); Exoplanetary atmospheres</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Key Themes</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">APRIM2026 will feature nine thematic tracks reflecting the latest scientific priorities and regional interests:</span></div>
<div style="margin: 0px; padding: 0px;"><br>
</div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;"></span><span style="font-size: 11px; font-weight: bold;">1. Astronomy Public Outreach and Education</span><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>–</span><span style="font-size: 11px; font-weight: bold;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">Regional
programmes for engaging students and the public through lectures, digital media, and observatory sessions, with a focus on STEM inspiration and science literacy. Added note: There is now also a full half-day specialist communication forum event (stay tuned
for further details)</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">2. Galaxies, AGN and the High Redshift Universe</span><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>–</span><span style="font-size: 11px; font-weight: bold;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: normal;">Investigations<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">into
galaxy formation and evolution in the early universe, including challenges posed by James Webb Space Telescope data and the epoch of reionisation.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">3. High Energy Astrophysics<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">–</span><span style="font-size: 11px; font-weight: bold;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: normal;">Studies<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">of
black holes, neutron stars, and supernovae, with emphasis on X-rays, gamma rays, cosmic rays, neutrinos, and gravitational messengers.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">4. Gravitational Wave Astronomy<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">–</span><span style="font-size: 11px; font-weight: bold;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">Latest
results from LIGO and next-generation detectors, offering new insights into compact object mergers and extreme astrophysical phenomena.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">5. The Life Cycle of Stars and Their Planets<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">– Advances in stellar evolution, planetary
nebulae, supernova remnants, the interstellar medium, and extrasolar planetary systems with implications for life beyond Earth.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">6. Radio, mm and Sub-mm Astronomy<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">– Highlights from facilities such as SKA and FAST, recent
surveys, and breakthroughs in interferometric techniques across radio wavelengths. There is now also a full half-day specialist SKA event added (stay tuned for further details)</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">7. Astronomical Surveys and Time Domain</span><span style="font-size: 11px;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px; font-weight: bold;">Astronomy</span><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>–
Developments in wide-field optical surveys, spectroscopic missions, and time-variable sky studies, with emphasis on the LSST era.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">8. Upcoming Astronomical Facilities</span><span style="font-size: 11px;"><span class="Apple-converted-space"> </span>–</span><span style="font-size: 11px; font-weight: bold;"><span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">Scientific
potential of future mega-infrastructures including ELT, GMT, Roman Space Telescope, and Xuntian.</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">9. Space Sustainability<span class="Apple-converted-space"> </span></span><span style="font-weight: normal; font-size: 11px; font-style: italic;">(note this theme has
now been elevated to a full parallel meeting)<span class="Apple-converted-space"> </span></span><span style="font-size: 11px;">– Addressing challenges from satellite mega-constellations and space debris, with discussions on international policy, interference
mitigation, and orbital ecosystem viability.</span></div>
<div style="margin: 0px; padding: 0px;"><br>
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<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Stay Updated</span></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">Conference updates, session details, and speaker announcements will be published in due course on the<span class="Apple-converted-space"> </span></span><a href="https://url.au.m.mimecastprotect.com/s/GxZQCWLVXkUXmog9yt1C2HoKGAy?domain=np5meuhbb.cc.rs6.net" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; color: rgb(73, 109, 173); font-weight: normal;">official
website</a><span style="font-size: 11px;">.</span></div>
<div style="margin: 0px; padding: 0px;"><br>
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<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px;">Join us in Hong Kong in May 2026 as we celebrate the frontiers of discovery in astronomy, astrophysics, and space science — and strengthen the bonds of global scientific
collaboration.</span></div>
<div style="margin: 0px; padding: 0px;"><br>
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<div style="margin: 0px; padding: 0px;"><span style="font-weight: bold; font-size: 11px; text-decoration: underline;">Contacts</span></div>
<div style="margin: 0px; padding: 0px;"><a href="mailto:aprim26@hku.hk" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; color: rgb(73, 109, 173); font-weight: normal;">Prof. Quentin Parker</a></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">Chair, APRIM2026 Organising Committees (SOC & LOC)</span><span><br>
</span></div>
<div style="margin: 0px; padding: 0px;"><a href="mailto:iaupressoffice@iau.org" rel="noopener noreferrer" target="_blank" style="text-decoration: underline; font-size: 11px; color: rgb(73, 109, 173); font-weight: normal;">Ramasamy Venugopal</a></div>
<div style="margin: 0px; padding: 0px;"><span style="font-size: 11px;">IAU Press Office</span></div>
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