Let's make this birthday one to remember.

55 years old (Born on August 14, 1969)

Happy Birthday, Tracy Caldwell Dyson! You've orbited Earth countless times and floated gracefully through the International Space Station—clearly defying gravity better than most of us handle stairs. Your adventures aboard Expedition 24 have inspired many to dream big (and float higher). Here's hoping your birthday cake stays firmly grounded this year!

From conducting groundbreaking research in space to serenading colleagues with your musical talents, you've truly shown that astronauts can rock both science experiments and karaoke nights. May your special day be filled with laughter, joy, and zero-gravity dance moves—we salute you for always reaching new heights!