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The Question

(Submitted December 22, 1998)

How many quasars do you think there are in the universe?

The Answer

There are about 12,000 known quasars today. I'm sure that as our telescopes get better, that number will go up. As a guess, I would estimate a lot.

Here is some other information on quasars:

http://apod.gsfc.nasa.gov/apod/ap981226.html

Hope this helps,
Mike Arida
for Ask an Astrophysicist

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