space-birthday

Space Birthday

Do you know how many Mars years old you are?

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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:
You need to enter the year correctly - your Jupiter birthday doesn't fall on the same day each year, in fact most years you don't even have one!

Celebrity Birthdays

 Galileo Galilei turns 1895 Mercury years old on the 14th July, 2020. 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
 Asaph Hall turns 792 Mercury years old on the 17th July, 2020. Asaph Hall was an American astronomer who discovered the two moons of Mars, Phobos and Deimos. Links: Wikipedia, Other Space Birthdays For Asaph Hall
 Marie Curie turns 634 Mercury years old on the 19th July, 2020. 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
 Robin Williams turns 69 Earth years old on the 21st July, 2020. 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
 Arthur C. Clarke turns 426 Mercury years old on the 23rd July, 2020. 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
 William Shatner turns 371 Mercury years old on the 29th July, 2020. 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
 J. K. Rowling turns 55 Earth years old on the 31st July, 2020. 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 209 Venus years old on the 1st August, 2020. 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
 Neil Armstrong turns 90 Earth years old on the 5th August, 2020. Neil Armstrong was the first human being to set foot on the moon. Links: Amazon, Wikipedia, NASA, Other Space Birthdays For Neil Armstrong
 Terry Pratchett turns 33 Discworld years old on the 8th August, 2020. 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

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