The Earth (but it was not known that it was a planet at that point. When the concept of "planet" came into use there were 5 known planets:
Note that at that point in time (ancient Sumerian or Babylonian civilization) the Earth was still not considered what we today call a "planet".
uranus is the coldest planet in the solar system. uranus was the first planet descovered in the modern age. uranus has only been visited once
In the 2001 they were first descovered.
It would be Neptune because it has never really been descovered
it was descovered by Robert dukes and marcin zebrowski
it never was "descovered" jesus crist made it in 7 day's thats also why ther is 7 day's in a week.
the madafaquer
unknow
White people
2009
Edwin Drake
No spacecraft was needed in order to discover the planet Mercury. It's a "naked eye" object, and has been known as a morning-star/evening-star since ancient times.
charles darwin