In 2004,a blazar of 10 billion solar masses was discovered at a distance of 12.5 billion ly.What was particularly intriguing about this discovery?

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The discovery of a blazar with 10 billion solar masses at a distance of 12.5 billion ly was intriguing because it implies that this blazar must have been formed very early in the history of the universe. This is because it would have taken billions of years for such a massive object to form, and the time since the Big Bang is only about 13.8 billion years. Therefore, this discovery raises questions about our understanding of early cosmic structure and evolution.

In 2004,a Blazar of 10 Billion Solar Masses Was Discovered