[Ads-l] blazar

[Jonathan Lighter]

https://www.yahoo.com/news/science/articles/scientists-think-cosmic-particle-accelerator-114500749.html

"A blazar is a type of active galactic nucleus (AGN), which is itself a
super-cluster of stars that shows significant luminosity across the
electromagnetic spectrum, much of which can't be attributed to emissions
from stars. The non-stellar radiation is largely believed to arise from the
accretion of matter by a supermassive black hole at the center."

JL
-- 
"If the truth is half as bad as I think it is, you can't handle the truth."

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The American Dialect Society - http://www.americandialect.org