From The Blaze.com (Feb. 18):
A new photo of galaxy NGC 4889 reveals the biggest black hole that astronomers have ever discovered. The famous Hubble Space Telescope helped scientists capture photos of the galaxy that sits nearly 300 million lightyears away in the Coma Cluster. The photo of the supermassive black hole appears placid and ethereal at first glance, and even though the black hole is dormant, it’s broken all types of records, according to the Hubble website.
Astronomers have estimated the mass of the hole to be 21 billion times the mass of the sun, and its event horizon (a surface so dense that even light can’t escape its gravitational grip) has a diameter of approximately 130 billion kilometers, or about 15 times the diameter of Neptune’s orbit around the sun. [read more]
Wow, that’s pretty big. I didn’t show the photo because there was really nothing to see. Scientists don’t really know how supermassive black holes get created.
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