“These were probably the very first objects to form in our universe,” he said. “They formed just about 500 million years after the Big Bang.” “Scientists suggest that the Big Bang occurred about 13 billion years ago, resulting in the creation of our universe, which continues to expand. The first stars in the universe were massive and primarily made up of hydrogen. They probably burned through the hydrogen quickly and exploded into supernovas early on. Although those original stars are long gone, the light from them is still traveling to us.”
Measuring the ancient starlight directly was impossible because the light from our own galaxy is overpowering. So instead, the researchers used gamma rays.
The researchers collected data on light in the universe 4 billion years, 8 billion years and 11 billion years after the Big Bang. In the future, he hopes to take measurements at points even closer to the beginning of the universe.
Opinion: I think this article is interesting because, maybe, it will mean a new form to think about the past of the universe.
I took the information of this article from http://www.nytimes.com/2012/11/06/science/scientists-detect-starlight-from-early-universe.html?ref=science
The original source here: http://arxiv.org/pdf/1211.1671v1.pdf