This story is just cool all around. The thing to remember is that, when we look into deep space, we are always looking back in time. The farther away the object, the farther back in time we are seeing.
The object in this story (of a class of objects known as "Lyman-Alpha blobs") is estimated to be about 12.9 billion light years away. Multiply that times 6 trillion and you have the distance in miles.
Scientists don't know much about the blob (dubbed "Himiko"), but are very keen to find out, as it is thought to be by far the oldest astronomical object yet encountered and could provide all kinds of information about the early universe... because it IS the early universe.
Isn't the time/space continuum weird?