A Glimpse Into The Time Before Quasars Were Born
The curve shows how the space density of quasars has evolved, from the Big Bang (cosmic time = 0) to the present day.
Credit:ESO
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îðèãèíàëüíîãî äîêóìåíòà
: http://www.eso.org/public/images/eso9641a/
Äàòà èçìåíåíèÿ: Unknown Äàòà èíäåêñèðîâàíèÿ: Sun Apr 10 05:49:20 2016 Êîäèðîâêà: IBM-866 |
The curve shows how the space density of quasars has evolved, from the Big Bang (cosmic time = 0) to the present day.
Credit:ESO