stargazer have wangle to boldly see what no human has seen before : the deepest view ever obtained over a gravid orbit of the sky .
These reflexion are part of theUltra - Deep Survey(UDS ) , which wrap up an arena four times the size of the Moon and admit over 250,000 galaxy that organize during the first billion years of the universe . The project was presented at theNational Astronomy Meetingin Nottingham .
" With the UDS we can meditate remote galaxies in large numbers , and follow how they evolved at different stages in the history of the universe , " said UDS squad leader Professor Omar Almaini in astatement . " We see most of the galaxies in our paradigm as they were gazillion of years before the Earth was formed . "
The project began in 2005 as part of theUKIRT Infrared Deep Sky Survey , and it was potential by keep an eye on the same plot of ground of sky repeatedly , accomplish 1,000 time of day of exposure .
Since the universe is expand , the light from distant galaxies is stretched out towards long wavelengths . For this ground , infrared allows us to appear at far - away galaxies that are in their prime . UDS covers a huge identification number of galaxies during several periods of the Universe . Most of the galaxies that have now been surveyed formed gazillion of years before Earth .
" We are particularly keen to understand the dramatic transformation that many monumental galaxies underwent around 10 billion long time ago , " said Dr William Hartley , a postdoctoral researcher at University College London . “ At that time many extragalactic nebula appear to have dead stopped forming stars , and they also changed embodiment to form spheroidal - looking Galax urceolata . We still do n’t in full understand why this happens . With our new UDS images , we have a bun in the oven to find enceinte numbers of these Galax urceolata , caught in the turn of shift , so we can study them in detail to solve this important puzzle . ”
Zooming into a small discussion section of the UDS field of honor . Omar Almaini , University of Nottingham
