What was the Universe like from the earliest phases immediately after
the Big Bang to the present day? This lecture reviews the physics of
matter, and follows the evolution of the expanding Universe from the
first instants after the Big Bang, when all 4 forces of nature were
unified in a single grand-unified superforce until the emergence of the
visible Un ... Show More
Jun 2009
Telescopes that Rocked Our World
This year marks the 400th anniversary of Galileo’s use of the first telescope. On this week’s show, we reflect on how telescopes have shifted our perspective on how small we are in size, space, and time. We also discuss how they help astronomers discover new and interesting aspec ... Show More
56 m