Light takes time to travel across the universe. Astronomers figure Himiko existed when the universe was an 800 million year old toddler. According to existing models of the Big Bang, small clouds of gas formed first and then took time to coalesce into bigger clouds that eventually formed galaxies and stars.
Is Himiko a proto-galaxy? Is there a black hole inside? Is it going to change our understanding of the Big Bang?
Whatever the answers are, one thing is sure — many research projects will be launched, seminars given, papers published, and young careers shaped, before the puzzle of Himiko is solved.