A Big Bang Fossil
Astronomers have discovered an ancient remnant of the Big Bang with some of the world’s most powerful telescopes. This scrap of pure material from the universe’s beginning could help researchers to better understand how and why different types of stars and galaxies formed in the early universe.

A group of astronomers, led by Fred Robert and Michael Murphy of the Swinburne University of Technology in Australia used telescopes at the W. M. Keck Obervatory in Hawaii to find