NASA says its Spitzer space telescope has detected the faint glow of the very first objects in the universe with the best precision yet.
The faint objects, which might be incredibly massive stars or voracious black holes, are too far away to be seen individually but Spitzer has captured convincing evidence of what appears to be the patterns of their infrared light, NASA's Jet Propulsion Laboratory in Pasadena, Calif., reported Thursday.
The findings suggest the universe's first objects furiously burned huge amounts of cosmic fuel, astrophysicists said.
"These objects would have been tremendously bright," Alexander "Sasha" Kashlinsky of NASA's Goddard Space Flight Center in Greenbelt, Md., said. "We can't yet directly rule out mysterious sources for this light that could be coming from our nearby universe, but it is now becoming increasingly likely that we are catching a glimpse of an ancient epoch."
The universe formed roughly 13.7 billion years ago in the big bang and, in time, cooled.
By around 500 million years later, the first stars, galaxies and black holes began to take shape, and astronomers say some of their "first light" might have taken billions of years to reach the Spitzer Space Telescope.
(UPI)
우주 최초의 빛 발견!
나사는 목요일 스피처 우주 망원경이 우주 최초 빛을 탐지했다고 밝혔다. 이 빛은 육안으로 확인하기에는 너무 멀었으나 나사의 젯 프로펄션 연구소는 확실한 증거를 발견했다고 전했다.
천체 물리학자들은 이 발견을 통해 우주 최초의 물질이 많은 양의 우주 에너지를 소모하고 있음을 보여준다고 말했다.
우주에서 빅뱅이 발생하고 5억년 이후 최초의 항성과 은하계, 블랙홀이 형성됐는데 천문학자들은 이 최초의 빛이 스피처 우주 망원경에 도달하기 까지 수십 억년이 걸렸을 것이라고 말했다.