One Big Black Hole - 140 Million Times Our Sun’s Mass!

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile ‘weighed’ a a barred spiral galaxy (NGC 1097) about 45 million light years from Earth. The 'scale' measured the distribution of two molecules, hydrogen cyanide (HCN) and formylium (HCO+), and comparing them to mathematical models.


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