When Exiting Galaxies? Other Galaxies?

Question

What happens when you exit galaxies? have we ever gotten to another galaxy? whats in the closest galaxy? and Do we know of any planets in other galaxys?

Answer 1

there is "empty" spce between galaxies, it's kind of like going from a forest thru the desert to another forest.  We have never even landed on another planet nor another solar system, much less another galaxy.

Light takes about 2 million years to get to another galaxy, it would take us about 1,000 times longer at least.

Answer 2

Think of galaxies like islands in a huge ocean.

There are over 100 billion galaxies estimated to exist in the observable universe.

No, we have never been to another galaxy - the farthest manmade object are the Voyager 1 and 2 probes, and they aren't even halfway to the nearest star yet.

Galaxies are made up of stars, dust, and gas - just like our galaxy.

Some galaxies have more stars than ours, some have less, some have more dust, some have less.

The closest galaxies to our own are all "satellite galaxies" of the Milky Way - the closest is the Canis Major Dwarf galaxy at 25,000 light years from our galaxy's centre.  That is too far for us to see planets.  

The farthest planet known so far is OGLE-2003-BLG-235L, about 19,000 light years away in the galactic bulge.

We don't know of (and will probably never know of) planets in other galaxies.

But that's okay - our own galaxy of over 200 billion stars is enough to keep us busy studying for millions of years.

Answer 3

Even with today's technology, it would take tens of  thousands of years to get to another galaxy.  If you could escape the gravitational pull of our Galaxy, you would drift off in the direction you were heading.  

Although we have not detected any planets, chances are excellent that they exist as we have discovered planets revolving other stars.

Contrary to what dude says, humans have landed on our moon and unmanned satellites have landed or passed nearby  all of the planets in our own solar system.  There is one satellite that has left our solar system but will be long forgotten before it reaches anything.