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50 Years Ago

Distance to quasars debated

Excerpt from the September 12, 1964 issue of Science News Letter

11:00am, August 21, 2014

FAR, FAR AWAY  A quasar lights up as interstellar debris swirls around a supermassive black hole in the center of a distant galaxy, as seen in this artist’s illustration. 

Odd-ball quasars may be closer than they seem — The odd-ball heavenly objects called quasars may be much closer to the earth’s own Milky Way galaxy than astronomers have thought. ... They have been regarded as the brightest and most distant objects known. However, they may not be so distant after all. Dr. James Terrell … believes quasars could be within two billion billion miles of earth…. This would place them between the Milky Way galaxy and the Andromeda Nebula. — Science News Letter, September 12, 1964


In the 1970s and ’80s, astronomers figured out that quasars are luminous disks of gas powered by super​-massive black holes, most of which are located more than halfway across the

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