World Science Festival 2008: Echoes from the Beginning (Excerpt)

In what many call a "golden age of cosmology", astronomers can now observe the universe with unprecedented precision, resulting in spectacular progress in the search for the origin of the universe. Yet, for all the impressive progress, fundamental questions remain. What is the mysterious "dark energy" driving space to rapidly expand? What existed before the big bang? Is there an origin of time? Do we live in a multiverse?

Our audience joined Science Friday's Ira Flatow in conversation with leading cosmologists Lawrence Krauss, Paul Steinhardt, and Lyman Page, and historian of science Helge Kragh as they discussed and debated new advances that are shaping our understanding of the cosmic order and our place within it.

Category:

Science & Technology

Tags:

• Ira
• Flatow
• Helge
• Kragh
• Lawrence
• Krauss
• Lyman
• Page
• Paul
• Steinhardt
• physics
• cosmology
• astronomy
• time
• dark
• energy

[esraretin]

thx for vid

[Metrinelund]

Read these comments from the bottom up!!

[Metrinelund]

is it possible that the forces could create a gravitational field with electromagnetism as it senter? Over time making it a dence singularity and creating the big bang?

[Metrinelund]

The fundamental interactions of nature will in theory exict becuse if it can exist in the universe it must have ben able to exist before the universe. Even tough it had nothing to interact with. So, you have a big nothing, with nothing in it but the fundamental interactions of nature. If these have nothing else to interact with other then the opposing forces, what would happend?

[Metrinelund]

0+0=0 ...... nothing can come out of nothing. btw, dumb answers from each of them. to the point of being arrogant! If we imagine a time before the big bang, even cast away the image of a black universe, making i t white, grey, green or whatever. Just to clear your head of the common black universe. think of it as a big nothing! No atoms, no particals, not even space. what in physics can exist even tough it is nothing?

[pijeyyy]

yo se la respuesta,es mas simple de lo que parece, cuando viajaron en el tren neil y tu que vieron ,piensen y sabran muy simple

[Crazyrat84]

elaborate please

[bonabunny]

This is great.

[fabbio8888]

Do they even take in account the possibility of no Big Bang?

[blobrana]

cool