Neil deGrasse Tyson on the Future of Space Exploration

Director of New York's Hayden Planetarium and host of the NOVA Origins miniseries returns to Planetary Radio for a conversation about the moon, Mars and beyond. He also gives positive marks to the new choice for NASA Administrator. Emily Lakdawalla is checking out moon rocks...literally, while Bruce Betts delivers a What's Up segment that reverberates with excitement...literally. Space headlines, too.