There are planets within every galaxy, so yes
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.
All the planets we know of... even those orbiting other stars... are in the Milky Way Galaxy.
The milky way is a GALAXY where the earth and the other 10/11 planets are in.
The planets were formed in the Milky Way. Our Galaxy (Milky Way) is older than the planets of our solar system.
Most planets that have been discovered are in the Milky Way
The closest galaxy that has planets is the Andromeda galaxy. It is the nearest galactic neighbor to the earth. The Milky Way has other planets too.
The solar system (the planets, the earth and the sun) is a part of the milky way, and rotates with the other stars the milky way consists of. The milky way is therefore not going to collide with the earth.
No. The sun and the planets form the Solar System, which is just one infinitesimally small part of the Milky Way.
the solar system or milky way
Nobody has been outside the Milky Way.
The Milky Way is the name for our own galaxy, so your question is, are there planets in other galaxies? While our technology is nowhere near good enough to detect planets in other galaxies, I think it is certain that those planets do exist.
It highly probable. Though we are unable to confirm this at the moment.