EVERY GALAXY IS RED SHIFTED SO IT´s MOVING AWAY FROM US
Oh shit Andromeda Galaxy is going to hit us!
HOW CAN U EXPLAIN THIS?
HOW CAN SOMETHING THAT IS MOVING AWAY FROM US ACTUALY HIT US?
You're talking about two different phenomena. The redshift is caused by the expansion of space. They're getting further away, but not moving. This effect is greater in proportion to distancefrom us.Those galaxies also have motion in various directions. Andromeda happens to be moving towards us. Since it us so close to us, this effect is greater than expansion and the net result is decreasing distance.