"Unveiling H1821+643: The Quasar That Defies Expectations"

"🌌✨ NASA's Chandra X-ray Observatory discovered a cosmic surprise! Meet H1821+643, a quasar that doesn't quite live up to its supermassive black hole status. This fascinating discovery challenges our understanding of how cosmic giants change their environment. 🔭🚀Show more

H1821+643 is 3.4 billion light-years away and captured in this magnificent composite image by Chandra (blue) and the NSF's Karl G. Jansky Very Large Array (red). Quasars like this one are known for their rapid growth and powerful radiation, however H1821+643 appears to be a tad underwhelming.
Despite rapidly attracting material, this quasar has a surprisingly small impact on its host galaxy, as revealed by Chandra's examination of the surrounding hot gas. The quasar's influence is significantly lower than projected, defying earlier theories. Like and Subscribe for more.