Astronomers shed light on early stars in cosmos

This computer simulation image made available by Science Express on Thursday, Nov. 10, 2011 shows gas around a forming galaxy for a paper by Dr. Michele Fumagalli and colleagues. After decades of scouring the universe, astronomers finally have found two immense clouds of gas that are pristine - free of the metals fired out into the cosmos by stars. The findings, published in Thursday's Science journal, provide the first solid detection of primitive, uncontaminated gas and support the long-standing theory as to how the chemical elements were formed in the early universe. It is these types of pure gas clouds that formed the first stars. The pristine gas detected by astronomers could lie in one of the filamentary regions. (AP Photo/Science Express, Ceverino, Dekel and Primack)

November 11, 2011 8:17:14 AM PST
After decades of scouring the universe, astronomers finally have found two immense clouds of gas that are pristine - free of the metals fired out into the cosmos by stars.