Which planet has the longest day of any planet in our solar system?

  • Mars
  • Venus correct

    Venus takes the gold medal on having the longest day of any planet in our solar system. It takes 224.65 days to complete each orbit. This is a little less than a year on Earth. But rather than a similar rotational period to Earth’s 24 hours, Venus takes 243 days to rotate once.

  • Saturn
  • Neptune
  • ON A DAY
  • Fact of the day

    Leonardo da Vinci could write with one hand while simultaneously drawing with the other.
  • This day in 1852

    The first edition of Peter Roget's Thesaurus is published

    • William Randolph Hearst

      San Francisco, California
    • Willie Nelson

      84 years old | Abbott, Texas
    • Jerry Seinfeld

      63 years old | Brooklyn, New York
    • Uma Therman

      47 years old | Boston, Massachusetts