69 years old (Born on April 15, 1956)
Happy Birthday, Gregory Harbaugh! You're officially orbiting around another candle-loaded cake. Hopefully your birthday celebration won't require docking maneuvers quite as delicate as your famous space station rendezvous with Mir—though balancing candles on the frosting can feel just as challenging!Seriously though, anyone who's navigated four impressive shuttle missions deserves stellar applause—and maybe some zero-gravity cake to celebrate properly. Thanks for boldly going where few have gone before and inspiring us all down here on Earth. May this year bring you joy that's truly out of this world—even if gravity insists it's not. Happy cosmic celebrations!