The solar system is in the milky way
Nobody has been outside the Milky Way.
Most planets that have been discovered are in the Milky Way
Yes. There have been hundreds of planets discovered in other stars in the Milky Way. It has been estimated that the Milky Way likely contains hundreds of billions of planets.
Anyone with normal eyesight can see the Milky on a dark clear night.
No one named the Milky Way. It has been seen in the skies since people first looked.See related question for why it is called Milky Way
No. The Milky Way is the name given to the galaxy in which we live. Mars is a planet, so it can't "have" a Milky Way. It is instead a plant in a solar system that is part of the Milky Way. However, the same Milky Way that is visible here would be visible from Mars, if there was anyone there to see it.
The Milky Way can be seen at night, when there is no interference from city lights. Since city lights have been around for only 100 years or so, the Milky Way has been known since antiquity.
No one named the Milky Way. It has been seen in the skies since people first looked.See related question for why it is called Milky Way
The Milky Way is right there in the sky for anyone to see - especially in rural and pre-industrial areas without artificial lighting. No one "found" it.
Yes and so have you. We are all part of it.
no.The milky way is jut another galaxy so if there was a alien from another galaxy they would never come to milky way cause there are none in milky way!
More than 1,100 open clusters have been discovered within the Milky Way Galaxy and many more are thought to exist.