Astronomers led by Caltech discovered a giant swirling discoid of gas 10 billion light-years away from Earth. The phenomenon is called a protogalaxy by scientists. It is a developing galaxy fed by a string of gas tracing back to the beginning of the universe. The discovery provides evidence for a newer theoretical model of galaxy creation.
Caltech’s Cosmic Web Imager (CWI) at Palomar Observatory – northeast of San Diego – imaged the protogalaxy. The observers discovered a link to what they call “the intergalactic medium”, or “cosmic web”, comprised of gases that flow throughout the universe. It appeared this link [...]