By Michael Hartley
If you were born on Mars, how old would you be today? Or how many times has Jupiter gone around the sun since you were born? What's your age in Venusian years? This page can tell you! Enter your and your friends' birthdays using the form below. The information will only be stored on this computer, not on the server, so don't worry! (PS - I also have some printable space birthday worksheets you can download if you want to do these calculations yourself.)
- Your/your friend's name:
- Your/your friend's birthday:
Celebrity Birthdays
George Takei turns 368 Mercury years old on the 7th December, 2025. George Takei played helmsman Lieutenant Sulu in the original Star Trek series. Links: Amazon, Wikipedia, Facebook, Other Space Birthdays For George Takei Isaac Newton turns 1590 Mercury years old on the 8th December, 2025. Isaac Newton, amongst many other discoveries, developed a theory of gravity that helped explain how the planets move in their orbits. Links: Wikipedia, Other Space Birthdays For Isaac Newton 
Neil Armstrong turns 155 Venus years old on the 13th December, 2025. Neil Armstrong was the first human being to set foot on the moon. Links: Amazon, Wikipedia, NASA, Other Space Birthdays For Neil Armstrong 
Arthur C. Clarke turns 108 Earth years old on the 16th December, 2025. Arthur C. Clarke was a science fiction author who dreamed of the time humanity would escape from planet earth and explore the galaxy. Links: Amazon, Wikipedia, Other Space Birthdays For Arthur C. Clarke Marie Curie turns 257 Venus years old on the 16th December, 2025. Marie Curie was a scientist who studied radioactivity. She was the first person to win two Nobel prizes, and is still the only person ever to win two in two different disciplines. Links: Amazon, Wikipedia, Other Space Birthdays For Marie Curie William Shatner turns 154 Venus years old on the 17th December, 2025. William Shatner is most famous for his role as Captain James T. Kirk, from Star Trek. Links: Amazon, Wikipedia, Other Space Birthdays For William Shatner Leonard Nimoy turns 154 Venus years old on the 21st December, 2025. Leonard Nimoy is most famous for his role as the Vulcan Spock in Star Trek. Links: Amazon, Wikipedia, Star Trek on Amazon, Other Space Birthdays For Leonard Nimoy 
Buzz Aldrin turns 51 Mars years old on the 23rd December, 2025. Buzz Aldrin was the second person to set foot on the moon. He also flew on one of the Gemini missions.. Links: Amazon, Wikipedia, Official Website, Other Space Birthdays For Buzz Aldrin Isaac Newton turns 383 Earth years old on the 25th December, 2025. Isaac Newton, amongst many other discoveries, developed a theory of gravity that helped explain how the planets move in their orbits. Links: Wikipedia, Other Space Birthdays For Isaac Newton 
William Shatner turns 8 Jupiter years old on the 14th February, 2026. William Shatner is most famous for his role as Captain James T. Kirk, from Star Trek. Links: Amazon, Wikipedia, Other Space Birthdays For William Shatner