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Pope Leo XIV Marks Apollo 11 Anniversary With Vatican Observatory Visit and Call to Buzz Aldrin

His observatory tour at Castel Gandolfo celebrated the Vatican’s centuries-old astronomical tradition before concluding with a blessing for Buzz Aldrin.

A gust of wind blows Pope Leo XIV's mantel at the end of the noon Angelus prayer in the square in front of the Apostolic Palace in Castel Gandolfo, Italy, Sunday, July 20, 2025. (AP Photo/Gregorio Borgia)
Leo has revived the papal tradition of holidaying at Castel Gandolofo, seat of the Observatory.

Overview

  • Leo’s visit represented his first time at the Pontifical Villas Observatory since his election, during which he inspected key telescopes alongside astronomers and students.
  • Founded in 1891 and tracing its origins to a 1582 papal calendar reform, the Vatican Observatory blends meteorite research with theological inquiry.
  • In a Sunday phone call, the pope blessed Aldrin, his family and his collaborators and reflected on Creation’s mystery as he honored the Apollo 11 mission.
  • Buzz Aldrin, now 95, was the second person to walk on the Moon and famously took communion on the lunar surface.
  • The outreach continues a papal legacy of space engagement, recalling Pope Benedict XVI’s 2011 call to the ISS and Pope Paul VI’s 1969 radio message to Apollo astronauts.