<div dir="ltr"><div>Hi All, <br></div><div><br></div><div>Please forgive the short notice, but I wanted to plug a seminar at BU this afternoon that may be of interest to other BAPS...</div><div><br></div><div><img id="m_-4617929078260927247imageSelected0" size="429549" src="cid:4a959fb4-8ec9-42a1-9a0c-a823022b232d" class="gmail-CToWUd gmail-a6T" tabindex="0" style="cursor: pointer; outline: 0px; max-width: 100%;"><br></div><div><div style="font-size:15px;margin:0px;color:rgb(36,36,36)"><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11pt;margin:0px"><u><span style="margin:0px;color:black">Thursday, 4/20 @ 4</span></u></span><span style="font-size:11pt;margin:0px"><u><span style="margin:0px;color:rgb(32,31,30)">:00PM</span></u></span><br></p><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif;margin:0px"></span></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="margin:0px"><span style="margin:0px;color:rgb(32,31,30)">CAS 502 and on Zoom</span></span><span style="font-size:11.5pt;margin:0px"></span></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11.5pt;margin:0px"> </span></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11.5pt;margin:0px">Join Zoom Meeting</span></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><br></p><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11.5pt;margin:0px"><a href="https://bostonu.zoom.us/j/98530693170?pwd=ZjJPQ3JMekVISVBDL0VCR3lZU3JZdz09" rel="noopener noreferrer" target="_blank" style="margin:0px">https://bostonu.zoom.us/j/98530693170?pwd=ZjJPQ3JMekVISVBDL0VCR3lZU3JZdz09</a></span></p><p style="margin-top:0px;margin-bottom:0px"></p><p style="margin-top:0px;margin-bottom:0px"></p><p style="margin-top:0px;margin-bottom:0px"></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11.5pt;margin:0px"> </span></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11.5pt;margin:0px"> </span></p></div><div style="margin:0px"><p style="margin-top:0px;margin-bottom:0px"><span style="margin:0px"><b><span style="margin:0px;color:rgb(32,31,30)">S</span><span style="margin:0px;color:black">peaker:</span></b></span><span style="font-size:12pt;font-family:"Times New Roman",serif;margin:0px"></span></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Times New Roman",serif;margin:0px;color:rgb(32,31,30)">Samantha <span class="gmail-il">Trumbo</span></span><span style="font-size:11.5pt;margin:0px"></span></p></div><div style="margin:0px"><p style="margin:0px;font-family:Calibri,sans-serif"><font style="color:rgb(32,31,30)"><span style="font-size:14.67px;margin:0px">Cornell University</span></font><span style="font-size:11.5pt;margin:0px"> </span><br></p></div><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="margin:0px"><span style="margin:0px;color:rgb(32,31,30)"> </span></span><span style="font-size:12pt;font-family:"Times New Roman",serif;margin:0px"></span></p><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="margin:0px"><b><span style="margin:0px;color:black">Title: </span></b></span><span style="font-size:12pt;font-family:"Times New Roman",serif;margin:0px">Oceanic Fingerprints and Radiation Processes on the Surface of Europa<br><i></i></span></p></div><p style="margin-top:0px;margin-bottom:0px"><span style="margin:0px"><span style="margin:0px;color:black"> </span></span><span style="font-size:12pt;font-family:"Times New Roman",serif;margin:0px"></span></p><p style="margin-top:0px;margin-bottom:0px"><span style="margin:0px"><b><span style="margin:0px;color:black">Abstract:</span></b></span></p></div><div style="margin:0px"><div style="margin:0px"><p style="margin:0px;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:11.5pt;font-family:"Times New Roman",serif;margin:0px">Beneath its ice shell, Jupiter’s moon Europa is understood to harbor a global, salty, liquid water ocean, making it a prime target for exploring habitability in the Solar System. Currently, the composition of Europa’s geologically young, fractured surface provides our best window into its ocean chemistry. However, its surface is also continuously altered by Jovian magnetospheric particle bombardment, creating a natural laboratory for radiation processes involving water ice, salts, and sulfur from the volcanoes of nearby Io. Unraveling and exploring the resulting tapestry of endogenic and exogenic signatures thus both provides clues to Europa’s internal geochemistry and keys to understanding radiolytic cycles common to icy bodies throughout the Solar System. I will discuss how recent Earth-based spectroscopic observations have been expanding our understanding of Europa’s heterogeneous surface and revealing new mysteries ahead of NASA’s upcoming Europa Clipper mission.</span></p></div></div></div></div><div><br></div><div>Best wishes, Carl</div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Carl Schmidt<br>Research Assistant Professor<br>Center for Space Physics<br>Boston University</div></div></div>