Dan Thornton was the head of the group. He works for Australia’s Commonwealth Scientific and Industrial Research Organization and the University of Manchester in Britain. He wanted to investigate the mysterious and powerful radio bursts. He also wanted to know if more were still being produced, where they came from and what would cause them.
Dan Thornton says he and his team found more of these radio bursts as they examined the skies. And they learned that the bursts were real and not just common radio interference.
“What we’ve discovered is very, very narrow radio emissions, so very short lived. They only last for a few milliseconds. The main thing that is interesting about them is that they appear to be coming from across the universe, so extremely far away. We get lots of these radio emissions a bit like this from our own galaxy, from pulsars. But these appear to be coming from way, way outside our galaxy, a million times further away.”
He says his team measured only four of the radio pulses over a one-year period because they were studying only small areas of the sky at one time. He says it will take a few more years to complete the entire sky survey. He says it is likely that thousands more of these signals will be discovered.
The astronomers are not completely sure about the cause of these radio bursts. But they think they could be the result of some major cosmological event that took place billions of years ago. Mr. Thornton says astronomers need to continue their investigations to better identify the source and cause of the radio bursts. One thing he is sure of is they are not coming from strange life forms.
最新
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25