Let's make this birthday one to remember.

79 years old (Born on September 21, 1945)

Happy birthday to the incredible Bjarni Tryggvason! You conquered Earth's atmosphere aboard the Space Shuttle, spending 12 astounding days orbiting our planet and making discoveries that literally reached new heights. Your passion for science and exploration leaves us all star-struck!

Whether you're floating weightlessly in space or mastering gravity back on Earth, your achievements continue to inspire generations of aspiring astronauts—and comedians too—because let's face it, studying atmospheric changes while spinning around at thousands of kilometers per hour gives "taking measurements under pressure" a delightful new meaning. Here's wishing you endless laughter, boundless adventures, and absolutely zero turbulence ahead!