Key point: this is referring to the observable universe

Light travels at a speed and the universe has an age. How far away we're able to see is determined by how long the light has had to reach us. Our observable universe is a sphere with a radius of 93 billion light years. if you travelled a billion light years away from earth, you would still only be able to see a sphere around you with a radius of 93 billion light years. Your observable universe would look different but it would be the same size and it would be centered on you no matter where you went.