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
Johannes Kepler turns 1870 Mercury years old on the 18th May, 2022. Kepler made very careful observations of the planets, and discovered Kepler's laws of planetary motion, which helped Isaac Newton develop his theory of gravity. Links: Wikipedia, Other Space Birthdays For Johannes Kepler J. K. Rowling turns 236 Mercury years old on the 3rd June, 2022. J. K. Rowling became famous for her Harry Potter series of books, after being rejected by eight different publishers. Links: Amazon, Wikipedia, Official Website, Other Space Birthdays For J. K. Rowling 
J. R. R. Tolkien turns 212 Venus years old on the 7th June, 2022. J. R. R. Tolkien was a linguist, who wrote the Hobbit for his children. It became so popular he wrote a sequel, Lord Of The Rings, and other novels.. Links: Amazon, Wikipedia, Other Space Birthdays For J. R. R. Tolkien Galileo Galilei turns 745 Venus years old on the 15th June, 2022. Galileo brought astronomy many leaps forward with his discoveries, including the discovery of the moons of Jupiter. Links: Amazon, Wikipedia, Other Space Birthdays For Galileo Galilei 
J. R. R. Tolkien turns 11 Jupiter years old on the 17th June, 2022. J. R. R. Tolkien was a linguist, who wrote the Hobbit for his children. It became so popular he wrote a sequel, Lord Of The Rings, and other novels.. Links: Amazon, Wikipedia, Other Space Birthdays For J. R. R. Tolkien 
Alan Turing turns 110 Earth years old on the 23rd June, 2022. Alan Turing is famous for his efforts in WW2 to crack the Nazi "Enigma" code, and for his writings on Artificial Intelligence.. Links: Amazon, Wikipedia, Other Space Birthdays For Alan Turing Isaac Newton turns 32 Jupiter years old on the 26th June, 2022. 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 Herschel turns 461 Venus years old on the 26th June, 2022. William Herschel was an astronomer who discovered the planet Uranus, the first new planet discovered since ancient times.. Links: Amazon, Wikipedia, Other Space Birthdays For William Herschel Johannes Kepler turns 38 Jupiter years old on the 24th August, 2022. Kepler made very careful observations of the planets, and discovered Kepler's laws of planetary motion, which helped Isaac Newton develop his theory of gravity. Links: Wikipedia, Other Space Birthdays For Johannes Kepler Robin Williams turns 6 Jupiter years old on the 15th September, 2022. Robin Williams was a well-loved comedian and film actor, who started his rise to fame as the alien Mork in Mork and Mindy. Links: Amazon, Wikipedia, Other Space Birthdays For Robin Williams If you like what you've just read, sign up for this site's free newsletters:
