<a href="https://en.wikipedia.org/wiki/Katie_Mack_(astrophysicist)" class="extiw" title="en:Katie Mack (astrophysicist)">Katie Mack</a> giving a talk on the end of the universe at CERN on 25 February 2019.
<a href="//commons.wikimedia.org/wiki/User:Rama" title="User:Rama">Rama</a>
CC BY-SA 3.0 fr
<span class="int-own-work" lang="en">Own work</span>