Astronomers have detected the most distant explosion ever witnessed in the heavens. It was a flash so powerful that they could observe the faint light as it came in from almost the edge of the known universe. The U. S. space agency’s Swift satellite was routinely scouring the cosmos for exploding stars on September 4 when it spotted what scientists have since realized is the most distant such burst on record.
In astronomy, distance means time. The further something is away, the longer its light has been traveling to get to us. So the star blast is also the most ancient ever observed.
The exploding star the Swift satellite observed was typical of the death of a massive star. These blasts am the most powerful in the universe, sending out 100 million times the energy the Sun does in one year. They are not rare, but occur daily, emitting their light in high energy gamma rays. If you could see gamma rays, the sky would twinkle with such bursts.
Astronomers have detected the most distant explosion ever witnessed in the heavens. It was a flash so powerful that they could observe the faint light as it came in from almost the edge of the known universe. The U. S. space agency’s Swift satellite was routinely scouring the cosmos for exploding stars on September 4 when it spotted what scientists have since realized is the most distant such burst on record.
In astronomy, distance means time. The further something is away, the longer its light has been traveling to get to us. So the star blast is also the most ancient ever observed.
The exploding star the Swift satellite observed was typical of the death of a massive star. These blasts am the most powerful in the universe, sending out 100 million times the energy the Sun does in one year. They are not rare, but occur daily, emitting their light in high energy gamma rays. If you could see gamma rays, the sky would twinkle with such bursts.
They were by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic clouds some 15 billion light-years from earth. 61 ) But even more important, it was the farthest those scientists had been able to looks into the past , for what they were seeing were the patterns and structures that existed 15 billion years ago. That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected: the US National Aeronautics and Space Administrations Cosmic Background Explorer satellite (COBE) had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy).
62) Tile existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s, to maintain its reign as the dominant explanation of
They were, by far, the largest and most distant objects that scientists had ever detected: a strip of enormous cosmic cloud some 15 billion light-years from earth. 71. But even more important, it was the farthest that scientists had been able to look into the past, for what they were seeing were the patterns and structures that existed 15 billion years ago. That was just about the moment that the universe was born. What the researchers found was at once both amazing and expected: the US National Aeronautics and Space Administration’s Cosmic Background Explorer satellite―Cobe―had discovered landmark evidence that the universe did in fact begin with the primeval explosion that has become known as the Big Bang (the theory that the universe originated in an explosion from a single mass of energy). 72. The existence of the giant clouds was virtually required for the Big Bang, first put forward in the 1920s,to maintain its reign as the dominant explanation of the cosmos. Acco
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