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Black Hole Trio Found
Astronomers have discovered that one member of a pair of supermassive black holes is actually a pair itself, turning the system into the most distant black hole triplet yet detected and raising hopes for future discoveries.
A MAD New Way to Make Black Hole Jets
Newly published observations provide the first real evidence supporting a theory that tells us how black hole jets form.
Black Holes Tango in Distant Galaxy
A bizarre X-ray flare first spotted in 2010 could be a signal from two black holes that will ultimately unite into a single beast.
Binary Quasar Is No Illusion
A close pair of quasars in Pisces turns out just that, not the record-breaking gravitational lens that astronomers had hoped.