Skip to comments.Astronomy Picture of the Day -- A Flight through the Hubble Ultra Deep Field
Posted on 08/27/2013 3:54:48 AM PDT by SunkenCiv
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 above 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 furthest 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.
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[Video Credit: Video Credit: NASA>, ESA, F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer and the HUDF Team (STScI)]
[Video Credit: Video Credit: NASA, ESA, F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer and the HUDF Team (STScI)]
[ Video Credit: NASA, ESA, F. Summers, Z. Levay, L. Frattare, B. Mobasher, A. Koekemoer and the HUDF Team (STScI)]
Since I first saw it quite a few years ago, I’ve considered the Ultra Deep Field the most remarkable and important photograph ever taken.
Excellent post and I agree. Isn’t it amazing that everything in that photo occurred by pure random chance?