The symplectic working group has the pleasure of hosting an afternoon of special guests. The aim of the gathering is to explore some aspects of the Science behind space exploration, both from a theoretical and a practical viewpoints, with symplectic geometry playing a pivotal role. After short presentations from the local symplectic working group and guests about theoretical aspects of the three-body problem and beyond (Moreno, Aydin, Kumar, Frauenfelder), we will be delighted by presentations by practitioners at the European Space Agency (Mastroianni, Boutonnet). We will close with the highlight of the event, a presentation by James Green (NASA‘s former chief of Science) about the subject of scientists and lovers: the Moon. Speakers: -James Green (chief scientist for NASA, retired), -Urs Frauenfelder (Augsburg University), -Agustin Moreno (Heidelberg University), -Cengiz Aydin (Heidelberg University), -Bhanu Kumar (Heidelberg University), -Arnaud Boutonnet (European Space Operations Centre (ESOC)/European Space Agency, Darmstadt), -Rita Mastroianni (European Space Research and Technology Centre (ESTEC)/European Space Agency, Noordwijk, Netherlands) Schedule: 12 - 1.30 p.m.: Lunch 1.30 - 3.30 p.m: Talks (Moreno, Frauenfelder, Aydin, Kumar) 3.30 - 4 p.m: Coffee break 4 - 5 p.m: Talks (Mastroianni, Boutonnet) 5 - 6 p.m: Talk by James Green Titles and abstracts of the talks can be found on the webpage of the event: https://www.mathi.uni-heidelberg.de/~geodyn/events/Stellar_Afternoon_2024/ Registration is open until October 18th, 2024 by email to Dr. Bhanu Kumar (bkumar@mathi.uni-heidelberg.de).