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The Universe 4 billion years ago

The Universe 4 billion years ago

Date: 15 August 2013
Satellite: Hubble Space Telescope
Depicts: Hubble galaxy classification
Copyright: NASA, ESA, M. Kornmesser

This image shows a "slice" of the Universe some 4 billion years back in time. The shape is that of the Hubble tuning fork diagram, which describes and separates galaxies according to their morphology into spiral (S), elliptical (E), and lenticular (S0) galaxies. On the left of this diagram are the ellipticals, with lenticulars in the middle, and the spirals branching out on the right side. The spirals on the bottom branch have bars cutting through their centres. The galaxies at these distances from us are small and still not fully-formed, but have some defined colour and structure.

This image is illustrative; the Hubble images used were selected based on their appearance. The individual distances to these galaxies are only approximate.

Last Update: 1 September 2019
25-Feb-2024 19:15 UT

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