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Related: About this forumAstronomers release spectacular survey of the distant Universe
Astronomers today (28 June) released spectacular new infrared images of the distant Universe, providing the deepest view ever obtained over a large area of sky. The team, led by Prof Omar Almaini, present their results at the National Astronomy Meeting at the University of Nottingham.
The final data release from the Ultra-Deep Survey (UDS) maps an area four times the size of the full Moon to unprecedented depth. Over 250,000 galaxies have been detected, including several hundred observed within the first billion years after the Big Bang. Astronomers around the world will use the new images to study the early stages of galaxy formation and evolution.
An image of a small section (0.4%) of the UDS field. Most of the objects in the image are very distant galaxies, observed as they were over 9 billion years ago. In the full image, 250,000 galaxies have been detected over an area of sky four times the size of the full Moon. Credit: Omar Almaini, University of Nottingham. Click for a larger image
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https://www.ras.org.uk/news-and-press/2877-astronomers-release-spectacular-survey-of-the-distant-universe
brush
(53,467 posts)are we back to there being one single universe now, which we were taught years ago encompassed everything?
immoderate
(20,885 posts)But it is quite spacious!
--imm
brush
(53,467 posts)Last edited Tue Jun 28, 2016, 02:49 PM - Edit history (1)
immoderate
(20,885 posts)The "universe" was once bound by the "firmament" which prevented the "waters above" from engulfing us. It was basically our visible solar system. The boundaries expanded. It was our galaxy, say after Ptolemy. Then, after Hubble there were many galaxies. Now, that we have established limits to the existence of the (our) universe (big bang) we can speculate about what might exist beyond that.
Even now, dark matter and dark energy are 95% of the known universe, and they were unknown when I was born.
--imm
brush
(53,467 posts)Seems broad enough to encompass all those things you mentioned.
immoderate
(20,885 posts)Alternate universes, and their existence is speculative. Consider also, that they may not "be" in the same way we are. How would things look without space-time?
--imm
Javaman
(62,439 posts)42
niyad
(112,432 posts)Socal31
(2,484 posts)To think we are somehow the only planet containing life......ludicrous.