Astronomers have discovered that the universe has been expanding by 1% every 44 million years, for the past 10.8 billion years.
A team of Astronomers from the Sloan Digital Sky Survey (SDSS) have combined two methods of measure which involves using quasars – luminous regions in the center of massive galaxies, and intergalactic hydrogen gas in order to measure the universe’s expansion rate.
Dr Matthew Pieri, from the Institute of Cosmology and Gravitation at the University of Portsmouth, said: “We are measuring the expansion of the universe with exquisite detail. Like the rings of a tree trunk, each quasar spectrum becomes an archive of the universe’s history.”
The Moroccan Times.
