The "eye" on Jupiter is a nickname for a large storm which has been raging on the planet for over 300 years. It is better known as "the great red spot".
It is a storm.
no
No.
Mercury, Venus, Mars, Jupiter, and Saturn can be seen with the naked eye.
The planet with a big red eye is Jupiter
Jupiter
only Jupiter
some time when you do see it jupiter looks like a star
Jupiter is visible to the naked eye and has been known for thousands of years. So no satellite was needed to find Jupiter.
Jupiter is visible to the naked eye. It has been known since mankind first started stargazing.
About the size of earth on jupiter
Jupiter