Q:

When was Jupiter found?

A:

Quick Answer

Jupiter was "known by the ancients," and so it does not have an official discovery date, according to NASA. There is evidence that pre-modern civilizations knew about the planet long before space exploration began.

Continue Reading

Full Answer

As the largest planet in the solar system, and one of only five planets that can be seen from Earth, people have likely been observing it for years, making it difficult to know exactly when it was discovered. While scientists do not know when Jupiter was discovered, they do know that four of its moons were discovered by Italian astronomer Galileo Galilei. The first probe to circle the planet was named after him.

Learn more about Planets

Related Questions

  • Q:

    When was Saturn discovered?

    A: Unlike many planets and stars, Saturn doesn't have a universally recognized date of discovery. Because Saturn is visible with the naked eye, its existence ... Full Answer >
    Filed Under:
  • Q:

    Who discovered Venus?

    A: No one knows who discovered Venus because the planet was known to the ancients. Named by the ancient Romans after their goddess of love and beauty, it is o... Full Answer >
    Filed Under:
  • Q:

    How big is Jupiter?

    A: The planet Jupiter is over 300 times larger than planet Earth. Jupiter's diameter is as large as 88,846 miles at the equator, and it is the largest planet ... Full Answer >
    Filed Under:
  • Q:

    How was Jupiter formed?

    A: Similar to the formation of other planets in the solar system, Jupiter was formed through the core accretion method. Jupiter likely formed after the sun to... Full Answer >
    Filed Under:

Explore