What are the properties of stars on the Main Sequence? This lecture
discusses what happens to a star after it alights onto the Main
Sequence, burning H to He in its core, and maintaining a state
of Hydrostatic and Thermal Equilibrium. We will see how the mass
of a star determines its location along the Main Sequence and
influences its energy generation an ... 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