Venus.
Retrograde Loop is the hole commonly found on the outside of a penis.
Venus
Mars
Venus
well the moon... but that's not really a planet so logically we found the closest planets first.
The Babylonians, who were credited with writing about both the element and the planet about 3500BC but this does not mean they were the first to observe.
galileo, he found it with a telescope.
First and recently are mutually exclusive and cannot be answered
Neptune was discovered using a telescope.Uranus was discovered with the naked eye, but because of it's slow rotation it was believed to be a star. Only with a telescope was it identified as a planet.
There is no such planet
Uranus is the answer, discovered by William Herschel in England.
Mars has a ravine which is the first ravine found on a different planet.