The Hierarchical Theory
Arguably, the most widely accepted theory of galactic formation says that galaxies formed from “collisions” of smaller structures, which then evolved over the past 8-11 billion years into the galaxies we see today. This is called the “Hierarchical Theory”. The Gemini Deep Deep Survey brings into question key predictions of the Hierarchical Theory.
Credit:Gemini Observatory/NSF/AURA/J. Lomberg
About the Image
Id: | gemini0406f |
Type: | Artwork |
Release date: | Oct. 8, 2004, 8 p.m. |
Related releases: | gemini0406 |
Size: | 1500 x 2400 px |
About the Object
Category: | Galaxies |