Joseph Silk - The Biggest Questions in the Universe

source: GreshamCollege       2015年9月30日
The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and...
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1 47:35 The Primordial Fireball
The Inaugural lecture by Professor Joseph Silk as the new Gresham Professor of Astronomy covers the fiery moments after the creation of the Big Bang: http://www.gresham.ac.uk/lectures-and... The universe underwent an inflationary period of expansion. From an extremely hot beginning, it cooled down then reheated to form the expanding universe that we observe today. The relic radiation generated the fossil glow of the cosmic microwave background radiation, a testament to its fiery origin. Microwave telescopes map out the structure of the universe long before the galaxies were present, only 370,000 years after Big Bang. The current challenges in cosmic microwave background astronomy will be described.
2 51:18 The First Stars
3 46:58 Galactic Archaeology
4 6:01 The Creation of the Chemical Elements
5 3:25 Galactic Disruption
6 3:11 A Fossil from the Big Bang
7 4:07 The Age of the Universe
8 4:06 Galactic Collisions
9 1:03:42 The Formation of our Galaxy
10 53:43 How Common is Life in the Universe?
11 53:40 The Dark Side of the Universe
12 1:00:03 Black Holes
13 54:06 The Expanding Universe
14 57:18 The First Three Minutes of Creation
15 47:53 Should We Trust a Theory?
16 45:46 The Accelerating Universe
17 53:04 Observing the Dark Ages
18 55:02 How Were The Stars Formed?
19 45:37 Are We Alone In The Universe?
20 52:06 How Special is our Universe?