World leaders react to a historic shift in U.S. policy toward Cuba. Pakistan buries victims of a school massacre by the Taliban. And U.S. officials say North Korea is behind the hacking of Sony Pictures. A panel of journalists joins Diane for analysis of the week's top international news stories.
Twenty years ago NASA launched the Hubble Space Telescope. The lead astrophysicist on the history of the Hubble, how it has forever changed our view of the universe and why he believes there’s life beyond Earth.
- Edward Weiler an astrophysicist and leading scientist at NASA. He served as chief scientist of the Hubble Space Telescope from 1979-1998. Currently he is the associate administrator for NASA's Science Mission Directorate. He is the author of "Hubble: A Journey Through Space and Time."
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A panel of journalists joins Diane for analysis of the week's top national news stories.
Bioengineers are creating human body parts to replace organs and manage life-threatening diseases. How techniques like 3-D printing and stem cell research are driving medical advances and raising ethical questions
Cuba releases American contractor Alan Gross after five years' imprisonment on espionage charges. The U.S. releases several Cubans in exchange. Details on the prisoner swap and the future of U.S.-Cuban relations.