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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.
Crédit:ESO
À propos de l'image
Identification: | eso9641a |
Type: | Graphique |
Date de publication: | 28 novembre 1996 |
Communiqués de presse en rapport: | eso9641 |
Taille: | 1016 x 808 px |