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APOD: 2020 July 26 Á A Flight through the Hubble Ultra Deep Field
| << Yesterday | 25.07.2020 | Tomorrow >> | 
Credit & Copyright: NASA,   
ESA,   
F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer and the HUDF Team   
(STScI)  
 
Explanation:
What would it look like to fly through the distant universe?  
  
To find out, a team of astronomers estimated the relative distances   
to over 5,000 galaxies in one of the most distant fields of galaxies ever imaged:  
the   
Hubble Ultra Deep Field   
(HUDF).  
  
Because it takes light a long time to cross the universe, most galaxies visible in  
the   
featured video   
are seen when the universe was only a fraction of its current age, were   
still forming, and have unusual shapes when compared to modern galaxies.  
  
No mature looking spiral galaxies such as our   
Milky Way or the   
Andromeda galaxy yet exist.  
  
Toward the end of the video the   
virtual observer flies past the   
farthest galaxies   
in the HUDF field, recorded to have a   
redshift past 8.  
  
This early class of low luminosity   
galaxies likely contained   
energetic stars emitting light that   
transformed much  
of the   
remaining normal matter   
in the universe from a cold gas to a hot ionized   
plasma.  
  
  
    
 Astrophysicists:   
Browse 2,200+ codes in the Astrophysics Source Code Library 
   
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Hubble Deep Field - galaxies
Publications with words: Hubble Deep Field - galaxies
See also:
- APOD: 2025 August 28 Á Galaxies, Stars, and Dust
- APOD: 2025 March 2 Á The Hubble Ultra Deep Field in Light and Sound
- APOD: 2024 December 31 Á The Twisted Disk of NGC 4753
- APOD: 2024 December 18 Á NGC 660: Polar Ring Galaxy
- Stellar Streams in the Local Universe
- APOD: 2024 April 15 Á The Cigar Galaxy from Hubble and Webb
- APOD: 2024 March 20 Á The Eyes in Markarians Galaxy Chain