Below are all of the URLs with the requested keyword, in the timeframe requested. This number will differ from the total article count in the confluence report, because this report shows all headlines containing a single keyword, but a single headline may have confluences on multiple keywords.
From abcnews.go.com
From www.cbsnews.com
From www.cnn.com
From www.foxnews.com
From www.nbcnews.com
Astronomers find what may be the universe's brightest object with a black hole devouring a sun a day