Black Hole Lurks in Invisible Galaxy

This figure shows two Hubble images of quasars from a sample of 20 relatively nearby quasars. Quasar HE0450-2958 (left) appears to lack a host galaxy unlike HE1239-2426 (right), which resides inside a normal host galaxy that displays large spiral arms. (Image credit: Frédéric Courbin & Pierre Magain.)

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Ker Than is a science writer and children's book author who joined Space.com as a Staff Writer from 2005 to 2007. Ker covered astronomy and human spaceflight while at Space.com, including space shuttle launches, and has authored three science books for kids about earthquakes, stars and black holes. Ker's work has also appeared in National Geographic, Nature News, New Scientist and Sky & Telescope, among others. He earned a bachelor's degree in biology from UC Irvine and a master's degree in science journalism from New York University. Ker is currently the Director of Science Communications at Stanford University.

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