How long is the milky way going to be here?

Answer 1

for ever and ever - until the universe collapses in upon itself and turns back into a grain of sand then expands again in a huge big bang

dude that is totaly wrong because the earth will not turn into a grain of sand and then expand again. it will blow up and then a different planet will appear.

that is the closed universe theory saying thata all the galaxies will collapses into a grain of sand (or the size of a needles point) and explodes creating a second big bang (or maybe the fifth or tenth) the other theory is the open universe theory saying the planets and universes will contune to drift off

actually you could say that when the andromeda galaxy crashes into the milky way

and become one galaxy then there would be no more milky way or when dark energy defeats dark matter than the whole universe would rip itself apart and if you were wondering dark matter keeps galaxies together without dark matter there would be no galaxies but dark energy just rips galaxies apart so if dark energy overcomes dark matter the whole universe would be ripped apart

Both wrong. The universe will never collapse, as thi big bang is still happening and making the universe bigger. When the andromeda collides with Sol we would'nt be in Sol, due to gravity assist. The gravity assist would be caused by spaceships being shot into space. Apprximately 5.8 million ships going at 1,000,000 mph could move Earth out of Sol at an earlier date. But I wouldn't reccommend that as we would get too far away from the sun, and freeze to death.