The universe was much brighter at its beginning than ever believed, according to the latest discovery. A breakthrough study could reveal the way in which everything began, and the universe came to life.
The latest data coming from NASA’s Spitzer Telescope has found that some of the earliest galaxies that came into existence used to be brighter than ever expected.
This extra light was due to the fact that these galaxies were releasing amazing amounts of ionizing radiation, according to the Independent.
The “Epoch of Reionization” describes the mysterious moment at which the universe’s first lights have been switched on so to speak, and which led to the starry sky we see at night.
Analyzing the first galaxies after the Big Bang
This latest study analyzed some of the universe’s first galaxies which have been formed less than a billion years after the Big Bang (more than 13 billion years ago.)
The birth of the first stars in our universe is still a huge mystery and experts don’t know exactly when it happened, according to the same online publication.
They also note that according to the existing evidence, this took place about 100 or 200 million years after the Big Bang when “the hydrogen gas that was floating around the universe gradually started to push itself into stars.”
After a billion years, the universe was flooded with the bright lights that we are seeing today. It then changed fundamentally, as the same online publication explains: “the neutral hydrogen gas that had been floating around had disappeared, with the universe switching from being full of nitrogen-hydrogen to being filled with ionized hydrogen.”
This is known as the Epoch of Reionization, and it’s the very key to the nature of the universe as we’re seeing it today.
“It’s one of the biggest open questions in observational cosmology,” Stephane De Barros, lead author of the study and a researcher at the University of Geneva in Switzerland stated and continued, “We know it happened, but what caused it? These new findings could be a big clue.”
Rada attended the courses in the Faculty of Letters, Romanian-English section, and finished the Faculty of Theatre and Television, Theatrical Journalism section, both within the framework of Babeş-Bolyai University of Cluj-Napoca. Up ’til now, she reviewed books, movies, and theatre-plays, enjoying subjects from the cultural niche. Her experience in writing also intersects the IT niche, given the fact that she worked as a content editor for firms that produce software for mobile devices. She is collaborating with online advertising agencies, writing articles for several websites and blogs.