They come to make sure that you're eating your vegetables.
We do not know since aliens have never been to earth.
There is no solid proof aliens even exist much less have visited Earth.
No, there are no aliens coming to the Earth or anybody's home.
probably
NO
never
No evidence says so.
Thats probiably because aliens dont like earth very much. Legend has it, That there is a 00.1% chance (small chances) for the aliens to come to earth with there UFOs. (i have seen over 4 UFOs in the sky before)
This, we may never know.
Only the imaginary kind have come so far.
probably not in the earth, but VERY most likely far away. we will probably die off before we come into contact with aliens.
Aliens, as in illegal aliens from Mexico or Guatamala? This morning. SPACE aliens who have come from another planet? Never.