文章列表

• 1.2015-05-15 BBC:星光七纪元-34
• He was sure that when a supernova exploded, it left behind a kernel so dense that a cupful would be as heavy as a mountain, he called it a neutron sta...
• 2.2015-05-13 BBC:星光七纪元-33
• Bloating in old age to become red giants;their cores contracting into white dwarves; The most massive ones exploding as supernovae; Fleeing the elemen...
• 3.2015-05-08 BBC:星光七纪元-32
• An implosion that launches an explosion creating enough heat and energy to forge almost all the other elements.The supernova explosion is able to prod...
• 4.2015-05-06 BBC:星光七纪元-31
• And with his colleagues, he did the calculations to prove it. The key was the conditions created in the final stages about massive stars fighting agai...
• 5.2015-05-01 BBC:星光七纪元-30
• And so i can see that there is hydrogen being produced by the supernova, and over here the yellow orange light is due to glowing atoms of sodium, it's...
• 6.2015-04-29 BBC:星光七纪元-29
• The supernovae that Alex photographs are hundreds of millions of light years away. The only reason that he can photograph them so distinctly is becaus...
• 7. 2015-04-24 BBC:星光七纪元-28
• And takes dedication perseverance and a love of the thrill of the chase, not just any kind of astronomer but a supernovae hunter, and one with perfect...
• 8.2015-04-22 BBC:星光七纪元-27
• The enigma of the white dwarf has been resolved. Scientists have discovered how the vast majority of the stars, including our own sun, would end their...
• 9.2015-04-17 BBC:星光七纪元-26
• Thats why what we physicists called pressure. This pressure is created as the particles jostle for position. Its a principle of Quantum Mechanics and ...
• 10.2015-04-15 BBC:星光七纪元-25
• Once the fusion stops, the whole thing collapses under its own weight to form a white dwarf, so you got this very small blob which is incredibly dense...