The astrophysicist and President of the Simons Foundation, Dr. David Spergel, visited us on November 21st. PriME members from our group as well as those from the Schubert/Ackermann and the Sauer lab welcomed him, providing hands-on demonstrations and presentations of our ongoing research on marine microbial ecosystems. The visit wrapped up with a round-table with the PriME PIs from ETH. We thank David for his support and we look forward to continued collaboration!