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
William Shatner turns 390 Mercury years old on the 24th February, 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 Terry Pratchett turns 319 Mercury years old on the 25th February, 2025. Terry Pratchett is a British fantasy author, known and loved for his incredible Discworld series. Links: Amazon, Wikipedia, Official Website, Other Space Birthdays For Terry Pratchett Albert Einstein turns 606 Mercury years old on the 25th February, 2025. Einstein's theory of relativity helped explain some oddities of the orbit of Mercury, which had been puzzling astronomers since the days of Newton. Links: Amazon, Wikipedia, Other Space Birthdays For Albert Einstein Leonard Nimoy turns 390 Mercury years old on the 28th February, 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 
Arthur C. Clarke turns 57 Mars years old on the 1st March, 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 Nicolaus Copernicus turns 2292 Mercury years old on the 2nd March, 2025. Copernicus is famous for his model of the solar system that put the planets orbiting around the sun. . Links: Wikipedia, Amazon, Other Space Birthdays For Nicolaus Copernicus Douglas Adams turns 303 Mercury years old on the 3rd March, 2025. Douglas Adams wrote the famous Hitch Hiker "trilogy", in which the unfortunate Arthur Dent bounces through space and time like a billiard ball.. Links: Amazon, Wikipedia, Official Website, Other Space Birthdays For Douglas Adams Carl Sagan turns 375 Mercury years old on the 4th March, 2025. Carl Sagan's writings have been incredibly inspirational in mankind's reach towards the planets and stars. Links: Amazon, Wikipedia, Official Site, Other Space Birthdays For Carl Sagan 
Douglas Adams turns 73 Earth years old on the 11th March, 2025. Douglas Adams wrote the famous Hitch Hiker "trilogy", in which the unfortunate Arthur Dent bounces through space and time like a billiard ball.. Links: Amazon, Wikipedia, Official Website, Other Space Birthdays For Douglas Adams Albert Einstein turns 146 Earth years old on the 14th March, 2025. Einstein's theory of relativity helped explain some oddities of the orbit of Mercury, which had been puzzling astronomers since the days of Newton. Links: Amazon, Wikipedia, Other Space Birthdays For Albert Einstein