The image itself was made with the significant addition of ultraviolet data to the Hubble Ultra Deep Field, an update of Hubble's famous most distant gaze toward the southern constellation of Fornax. It now covers the entire range of wavelengths available to Hubble's cameras, from ultraviolet through visible to near-infrared. Ultraviolet data adds the crucial capability of studying star formation in the Hubble Ultra Deep Field galaxies between 5 and 10 billion light-years distant.
This image is a composite of separate exposures taken in 2003 to 2012 with Hubble’s Advanced Camera for Surveys and Wide Field Camera 3 (WFC 3).
Astronomers previously studied the Hubble Ultra Deep Field – a small section of space in the constellation Fornax – in visible and near-infrared light in a series of images captured from 2003 to 2009.
Now, using ultraviolet light, they have combined the full range of colors available to Hubble, stretching all the way from ultraviolet to near-infrared light.
originally posted by: Blue Shift
Interesting suggestions of circular patterns. Shockwaves?
The groups trace the 500 million light-year pattern to the first instants after the universe burst into being 13.7 billion years ago, when mysterious quantum fluctuations bubbled through space. These created pockets of different density in a searing fog of ionised gas and photons that eventually clumped into structures like stars and galaxies.
But early on, when clumps of gas began to collapse and grow, photons trapped in the dense fog exerted an outward pressure that counteracted the growth. These opposing forces set off pressure, or sound, waves that oscillated within the fog.
Astronomers have used "earthshine" to get a spectrum of our planet that will be useful in their future searches for Earth-like planets around other stars.