What are the different types of galaxies? What hints can they give
us as to the structure and evolution of galaxies? This lecture
introduces the Hubble Classification System for galaxies, and describes
the properties of each major class. This detailed overview gives us
some tantalizing clues as to the formation and evolution of galaxies
that will be pick ... 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