Buzz Aldrin pays tribute to the Apollo 11 mission on its anniversary, invoking Kennedy's famous speech and expressing gratitude to all who helped achieve the historic moon landing.

After praying the Sunday Angelus at his summer retreat in Castel Gandolfo, Leo headed to the astronomical observatory located in the Pontifical Villas.

Pope Leo visited the Vatican’s internationally-recognized observatory, called the Specola Vaticana, where he was able to look through the astronomical center’s historic telescopes.