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Mercury, Venus, Mars, Jupiter and Saturn can all be seen with the naked eye. So no one knows when a person looked into the sky and saw them.

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6y ago
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5mo ago

The first planet discovered besides Earth is Uranus, which was discovered in 1781 by William Herschel.

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Q: When was the first planet discovered besides Earth?
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Related questions

What was the first planet discovered besides earth?

The first planet discovered besides Earth is Uranus. It was discovered by William Herschel in 1781.


What was the first planet that was discovered besides earth?

The first planet to be discovered besides Earth is Mars. It is visible to the naked eye and has been observed for thousands of years by various civilizations.


First planet tobe discovered?

Earth...


What was the first planet discovered?

The first planet discovered using a telescope was Uranus. It was first observed by Sir William Herschel on March 13, 1781.


When was earth planet discovered?

When humans evolved and realized they were standing on something.


Why is Neptune's?

THIS PLANET IS THE FIRST TO BE DISCOVERED BY MATH THIS PLANET IS THE FIRST TO BE DISCOVERED BY MATH


VWhen was the earth discovered?

There really isn't a date the Earth was discovered, as humans have known of the existence of the planet since the species was first capable of symbolic thought.


When first discoveed the planet earth?

Earth's exact age is indefinite but it is millions of years old. Humans discovered it when they had their first concious thought.


Who discovered your planet?

I am an artificial intelligence created by a team of engineers and developers.


How first discovered the planet earth?

No one discovered Earth. Humans have been here since the beginning of our existence. Earth's exact age is indefinite but we know it is millions of years old.


Are there alien planets?

All planets other than Earth could be considered alien. Earth is the only planet known to harbor life.


What was the first planet earth discovered?

The first planet discovered in our solar system was Mercury. It has been known to humans since ancient times due to its visibility to the naked eye.