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  • 英语听力:2013-11-03 地平线:黑洞吞噬—20

    The super bright quasar phase having ended many billions of years ago, when the fuel that fires violent emissions was completely consumed. But now, with the approaching gas cloud and a prospect of feeding, the black hole should get brighter. Exactly...

  • 英语听力:2013-11-01 地平线:黑洞吞噬—19

    We now know this light is produced by the rotating disk of matter, spinning round the edge of the black hole at the heart of the Cygnus A galaxy, waiting to be devoured. It means that against all popular expectations, the brightest sources of light i...

  • 英语听力:2013-10-30 地平线:黑洞吞噬—18

    Here then is the strange paradox of black holes: the defeating black hole is anything but black. Just how greedy and bright a black hole can get is revealed by an aptly very ordinary looking galaxy called Cygnus A, some 650 million light years away....

  • 英语听力:2013-10-27 地平线:黑洞吞噬—17

    The difference is that when you have a lot of gas, a lot of stuff orbiting around the black hole, there is a little bit of friction that causes matter to slowly spiral in towards the black hole. As gas continues to spiral in towards the Event Horizon...

  • 英语听力:2013-10-25 地平线:黑洞吞噬—16

    To stare into the void of a black hole, to tumble through space before disappearing forever within it, it's the prospect of catching that unique moment that explains the excitement of this year's events. What happens to matter once it's been swallowe...

  • 英语听力:2013-10-23 地平线:黑洞吞噬—15

    It's clear that it will come very close to the black hole, might even hit the black hole. So maybe we actually are feeding the black hole here. Now exactly how much and how fast of all these is completely unknown and that's the excitement about it be...

  • 英语听力:2013-10-20 地平线:黑洞吞噬—14

    Instead, it seems to be a gas cloud moving at huge speeds right in the direction of the black hole. But what really rang along bells was the way it had changed shape. We see that this gas cloud as it moves closer and closer to the black hole, is gett...

  • 英语听力:2013-10-18 地平线:黑洞吞噬—13

    It was a stunning discovery. After a quest lasting decade, Donald Lynden-Bell had been proved right. Here indeed, just where he had predicted, was a super massive black hole. But in the last year, the quest to find and understand black holes has sudd...

  • 英语听力:2013-10-16 地平线:黑洞吞噬—12

    If there's a black hole at the center of our galaxy, that's gonna force these objects that are really close to the black hole to move much faster than they would move if there were no black holes. So the first thing you wanted to see is there are ver...

  • 英语听力:2013-10-13 地平线:黑洞吞噬—11

    Just as I arrived at UCLA with my first faculty position, everything was falling into place in terms of the ability to answer this question at the centre of our galaxy. The telescopes were getting bigger so you had the due ability to see fine details...

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