Let's make this birthday one to remember.

88 years old (Born on February 13, 1937)

Happy Birthday, Sigmund Jahn! Celebrating the man who boldly went where no German had gone before—literally. Your historic journey aboard Soyuz 31 as part of the Intercosmos program didn't just make headlines; it made gravity jealous and inspired generations to dream beyond Earth's limits.

Even today, your cosmic adventures continue to remind us that reaching for the stars isn't just a metaphor—it’s an achievable goal. May your birthday be filled with laughter brighter than rocket flames and joy more expansive than outer space itself. Here's hoping this year brings you plenty of cake, zero-gravity dancing, and endless stellar moments!