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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit07When it's feeding, a giant black hole creates a bright burning gas disk around it and then for some reason, it stops feeding, leaving a dar2008-08-02 编辑：echo
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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit06When the results came down from the telescope he saw something that was completely unexpected. The picture from the active galaxy where he h2008-07-31 编辑：echo
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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit05By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a2008-07-31 编辑：echo
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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit04This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole su2008-07-31 编辑：echo
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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit03A supermassive black hole is quite simply gravity gone mad. An object of such concentrated matter its gravitational pull is insatiable. Noth2008-07-31 编辑：echo
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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit02But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to expla2008-07-30 编辑：echo
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[自然百科] 探索世界奥秘之Supermassive Black Holes(超大质
探索世界奥秘之Supermassive Black Holes(超大质量黑洞) Unit01In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We2008-07-30 编辑：echo
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[自然百科] 探索世界奥秘之The Ghost In Your
探索世界奥秘之The Ghost In Your Genes(基因外遗传现象) Unit15The work of these scientists is at last throwing a spotlight onto the mysterious hidden world of epigenetics. They appear to show that the2008-07-30 编辑：echo
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[自然百科] 探索世界奥秘之The Ghost In Your
探索世界奥秘之The Ghost In Your Genes(基因外遗传现象) Unit14The impact of a famine being captured by the genes in the eggs and sperm, and a memory of this event was being carried forward to affect th2008-07-30 编辑：echo
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[自然百科] 探索世界奥秘之The Ghost In Your
探索世界奥秘之The Ghost In Your Genes(基因外遗传现象) Unit13They discovered that when a famine was able to trigger an effect was different for the grandmother than the grandfather. The grandmother ap2008-07-29 编辑：echo
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