Another UCSB researcher, Tommaso Treu, was involved in the discovery of the most distant protocluster of newly forming galaxies ever seen, 13.1 billion light years away and composed of five protogalaxies.
The protocluster was found using the Hubble telescope and is helping scientists understand the formation of structures in the early history of the universe.
said the discovery reveals a wealth of information about the formation of galaxies.
"It tells us that groups of galaxies are already in place a mere 600 million years after the Big Bang and that the universe is already almost completely ionized by this time," Treu
said in an email.
"At the time when the light that left these galaxies was emitted, galaxies were much smaller, more irregular in shape and more actively star-forming than present day galaxies."
The discovery represents the oldest galactic structures observable and thus the furthest look back into the history of galaxies in the universe.
It was made possible by recent modifications to the Hubble telescope, Treu
"We used the infrared camera Wide Field Camera 3 on board the Hubble Space Telescope," Treu