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 1812

    The United States declares war on Great Britain​. The War of 1812 begins.

    • George Mallory

      Cheshire, England
    • George Mikan

      Joliet, Illinois
    • Isabella Rosselini

      66 years old | Rome, Italy
    • Paul McCartney

      76 years old | Liverpool, United Kingdom