No.
I don't believe any planets have been detected outside of our Galaxy.
Within our Galaxy, planets are detected by inference not visual techniques.
See link for lists of known extrasolar planets
It is possible that every galaxy has some planets. We just are starting to detect some planets in other galaxies.
All the planets we know of... even those orbiting other stars... are in the Milky Way Galaxy.
Compared to some other planets in the same galaxy, yes; it is actually fractions of the size of other planets in this galaxy
yes
There are no known planets in any galaxy other than our own. While it is doubtless that other galaxies, including the cigar galaxy, contain planets they are much too far away fur us to detect them.
We expect the Andromeda galaxy to be just like our own Milky Way galaxy. We can see stars (suns) in the Andromeda Galaxy and just as stars have planets orbiting them in our galaxy, we believe that there must be planets also orbiting stars in the Andromeda galaxy.
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 planets are part of the galaxy.
There are billions of other planets hanging around in the universe. We're not the only 8 planets in the universe.
You first have to get past the planets of our solar system (which is IN our galaxy) in order to then make movements to get out of the entire Milky Way galaxy.
There are planets within every galaxy, so yes
No one knows. Astronomers are scanning the visible stars of our own Milky Way galaxy for planets orbiting faraway stars, but such planets would have to be nearly the size of Jupiter to be detected at such distances