Andromeda=20is=20not=20going=20to=20collide=20with =20the=20Milky=
=20Way,=20but=20only=20merge.

Actual=20star=20collisions=20are=20in=20fact=20goi ng=20to=20be=20e=
xtreemly=20rare,=20if=20any=20!

All=20should=20start=20to=20think=20of=20this=20up coming=20event=
=20in=20the=20proper=20context.