Q:

Can you see Jupiter without a telescope?

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Quick Answer

Jupiter is visible without a telescope and is the fourth-brightest object in the sky after the sun, the moon and the planet Venus. It is three times brighter than the brightest star, Sirius.

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Full Answer

The first person to observe Jupiter through a telescope was the scientist Galileo Galilei. He also observed Jupiter's four largest moons orbiting the planet, and this helped refute the geocentric theory that everything revolved around the Earth, which was the belief held by the Catholic church at that time. Galileo came out in favor of the Copernican theory that the Earth, Jupiter and the other planets revolved around the sun. For this he was persecuted by the church, forced to recant this theory and sentenced to house arrest where he remained until he died.

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    What are the characteristics of the planet Venus?

    A:

    The planet Venus is the second closest to the sun. Sometimes called Earth's twin due to its similar size, mass and density, Venus is a rocky terrestrial world with a number of unique features that are not found on the other planets within the solar system.

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  • Q:

    What is Jupiter made of?

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    Can we live on Jupiter?

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    It would be impossible for humans or any other life to live on Jupiter, as the planet is made up primarily of gases almost the all the way to its core. NASA speculates that it might be possible for a very secure spacecraft to visit Jupiter, but it couldn't land, as the planet does not have any solid surfaces.

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