<div dir="ltr"><div><span id="gmail-docs-internal-guid-83e6864e-7fff-2db8-fa6f-79a2dec06b41"><p dir="ltr" style="line-height:1.38;margin-top:10pt;margin-bottom:0pt;padding:0pt 0pt 10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Dear Colleagues,</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;padding:0pt 0pt 10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">We are pleased to announce that the </span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Beacon Satellite Symposium 2025</span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline"> will take place in </span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Rome, Italy</span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">, from </span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">November 10 to November 14, 2025</span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">. This symposium, organized by the Beacon Satellite Group of the International Union of Radio Science (URSI) Commission G, will bring together leading researchers and experts in ionospheric science from around the world.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;padding:0pt 0pt 10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">The periodic symposia organized by the Beacon Satellite Group provide an exceptional platform for ionospheric scientists to meet, collaborate, and advance their understanding of ionospheric </span><span style="font-size:11pt;font-family:Arial,sans-serif;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline"> physics and</span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline"> effects on radio propagation. These symposia play a key role in our mission, fostering discussions among experts across various scientific disciplines, research fields, technological applications, and engineering.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;padding:0pt 0pt 10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Further details about the symposium will be made available on our </span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">official website</span><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">, which is available at </span><a href="https://bss2025.ingv.it/" style="text-decoration-line:none"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;text-decoration-line:underline;vertical-align:baseline">https://bss2025.ingv.it/ </span></a><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">. Updates will be published regularly as more information becomes available.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;padding:0pt 0pt 10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">We look forward to welcoming you to Rome for what promises to be a valuable and engaging symposium.</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;padding:0pt 0pt 10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Best regards,</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:10pt"><span style="font-size:11pt;font-family:Arial,sans-serif;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;vertical-align:baseline">Claudio Cesaroni on behalf of the LOC</span></p></span><br class="gmail-Apple-interchange-newline"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font size="2">---------------------------------------------------------------------</font></div><div dir="ltr"><font size="2"><br></font></div><div dir="ltr"><font size="2">Claudio Cesaroni, PhD</font></div><div dir="ltr"><font size="2"><br></font></div><div><font size="2">Senior Research Scientist</font></div><div><font size="2">International </font>Alexander Chizhevsky medal awardee 2023</div><div><font size="2"><br></font></div><div><div dir="ltr"><i>Head of Upper Atmosphere Physics and Radiopropagation unit</i></div></div><div dir="ltr">Istituto Nazionale di Geofisica e Vulcanologia<br></div><div dir="ltr"><font size="2">Via di Vigna Murata 605, 00143, Roma, Italy</font></div><div dir="ltr"><font size="2">Tel. +39-0651860447</font></div><div dir="ltr"><br></div><div dir="ltr"><img width="200" height="59" src="https://ci3.googleusercontent.com/mail-sig/AIorK4xMiw8sbcHrlR7YCHTtpdscjsVhZYUklPLBA_evxfWp_pWj49eZMjpr2qUfByEW661LjlNQzrlXR_YS"><br></div><div>Beacon Satellite Symposium 10-14 November 2025</div><div><a href="https://bss2025.ingv.it/" target="_blank">https://bss2025.ingv.it/</a></div><div>Chair of the Local Organizer Committee </div><div dir="ltr"><font size="2">---------------------------------------------------------------------<br><br></font></div></div></div></div></div></div></div></div></div></div></div></div></div>