Germany’s biggest reading festival is coming to us again! National Reading Day delights children and adults alike with stories that spark the imagination, impart knowledge, and—along the way—promote language development. At the Archenhold Observatory and the Zeiss Grand Planetarium, authors such as Sandra Bayer, Fee Krämer, and Cally Stronk invite you to listen, dream, and discover.Reading with Cally Stronk & Christian FriedrichCally Stronk has written over 60 books. She lives in the urban jungle of Berlin with her husband, author Christian Friedrich, and their cat Yazhi. There she also has a studio where she paints and invents stories. Cally’s goal: She wants to write nothing but favorite books. When Cally isn’t writing or painting, she’s often on the road throughout Germany for readings, writing workshops, and creative workshops. She has also been honored with several awards; she is especially proud of the Preuschhof Prize for Children’s Literature, because the jury consisted of over 300 children who chose her book as the best and funniest one.Christian Friedrich is an author with a passion for living and extinct animals. He hasn’t met any aliens yet, though. Instead, he has an exceptionally cute cat who lives with him and his wife, the author Cally Stronk, in Berlin. He studied at the University of Hildesheim, where he also taught various seminars on the topic of humor. Christian travels throughout Germany, thrilling audiences with his exciting and action-packed reading shows.“Mystery Agents: On a Mission for N.A.S.E.” (Fischer Sauerländer Verlag)When Lex, Lupe, and Sammy receive a strange message, they stumble into the wildest adventure of their lives. Also joining the adventure: a round-as-a-ball alien with a chocolate addiction named Koko, slimy monsters, wacky agent gadgets—and N.A.S.E., the secret alien agent organization with a special mission. The friends must solve tricky puzzles, rescue Koko, and stop a dangerous villain! So, basically, just another normal day in the life of alien agents.Full of humor, excitement, chocolate chaos—and lots of puzzles to solve together.The program for Read-Aloud Day 2026 with the Planetarium Berlin Foundation: 9:00–10:00 a.m.Sandra Bayer“Galactically Secret Alien Secrets”Zeiss Grand Planetarium, Planetarium Hall9:00–9:45 a.m.Fee Krämer“HÄNK – A Hamster Dreams of Space”Archenhold ObservatoryEinstein Hall10:00–10:45 a.m.Inga Marie Ramcke“The Astronaut Next Door: A Journey from the Children’s Room to Space”Archenhold ObservatoryEinstein Hall11:00–11:45 a.m.Cally Stronk, Christian Friedrich“Mystery Agents: On a Mission for N.A.S.E.”Archenhold Observatory,, Einstein Hall12:00–12:45 p.m.Babette Pribbenow“Pepper Mint and the Crazy Fantastic Research Book”Archenhold ObservatoryEinstein Hall© Stiftung Lesen, Deutsche Bahn Foundation, DIE ZEITTranslated with DeepL