In the past week, a group of NASA researchers were observing about 700 different clusters of galaxies x-ray emitting gases. They came to a discovery that was very shocking because it didn't agree with many theories. This discovery is that the galaxy clusters are moving towards some thing with an immense gravitational pull that is not visible in our universe, and they're moving at about 200 million miles per hour. This observation was made using an experiment called the kinematic Sunyaev-Zel'dovich (VS) effect which basically shows how much movement there is with a cluster of galaxies against the background.
Now, one might ask, what does this mean, and where is everything headed towards? Scientists have no definite explanation to this very odd phenomenon, they only have theories that are intertwined with how the universe came to be in the Big Bang. One of these theories is that when our universe was created, its twin universe (which is unobservable from this universe) inflated and spread out less evenly than ours did, which would make it more dense and give it a greater gravitational pull. This theory ties into the observations from the NASA team because all of these moving clusters of galaxies (by the way, the Milky Galaxy is included) are headed in the same direction. IT is very difficult to comprehend how our universe would be able tobe attracted to another universe, and that there even can be an end to the universe, but a good way to think abouthow this is possible is by using string theory, which is a very complex concept.
In reality, there's no real need for us to worry about this movement affecting our lives, because it isn't anything new that is happening in the universe, it's just something that was recently discovered.
