Physics and Our Universe: How It All Works

An Evolving Universe (1x59)

Udgivelsesdato: Sep 30, 2011

Trace the discoveries that led astronomers to conclude that the universe began some 14 billion years ago in a big bang. Detailed measurements of the cosmic microwave background and other observations point to an initial period of tremendous inflation, followed by slow expansion and an as-yet inexplicable accelerating phase.