Is there any evidence that the Universe was very hot and dense
in the distant past as predicted by the Big Bang model of the
expanding Universe? This lecture examines observational tests
of the Big Bang Model. We have already covered expansion in the
previous lecture. Today we look at Primordial Nucleosynthesis, the creation
of light elements from fusion ... 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