David Morrison of NASA's Lunar Science Institute and Jack Gregg on the Lunar Regolith Challenge

The Lunar Science Institute is just getting started and it is already deeply involved with NASA's plans to return to the moon. Interim Director David Morrison tells us about the Institute's call for partners and a recent conference. Jack Gregg's agency sponsored the second Lunar Regolith Challenge a few days ago. He'll give us a report. One solar eclipse is not like another. We'll learn why in Emily Lakdawalla's Q&A, while Bruce Betts and Mat Kaplan want help naming a car in the new What's Up contest.