I am an amateur astronomer and had a question concerning the most distant object found. It is said that the object is 13.1 billion light years from Earth and we are just seeing the burst that happened 640 million years after the Big Bang. Shouldn't the light from this explosion passed by the location of our Earth long before it was ever even created? How is this possible? According to relativity (my amateurish understanding of it), the speed of light is constant regardless of the speed of the object emitting it. Please explain. Thanks.