Chandra
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Black Hole 'Wakes Up' After 26-Year Slumber
By Elizabeth Howell published
After "sleeping" for 26 years, a black hole's activity lit up astronomical observatories on June 15,and it's still going on today.
Century-Old 'Mini-Supernova' Captured in Gorgeous NASA Photo
By Shannon Hall published
The century-old outburst from a classical nova is still going strong and surprising astronomers with its steady temperature.
Best Space Photos of the Week - Feb. 15, 2015
By Space.com Staff published
From a colorful cosmic "flower" to a smiley face in space, don't miss these amazing space images of the week for Feb. 15, 2015.
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