Only days after Voyager 1 reached interstellar space, forward thinkers met in Houston, Texas to consider how humans can become a starfaring species. Planetary Society Emeritus Executive Director Lou Friedman reports from the meeting. Emily Lakdawalla bids a fond farewell to Deep Impact. Bill Nye takes a break from Dancing With the Stars to comment on a Space News op-ed. Five contestants have won our latest contest from outer space, and their prizes include swag from the new film, “Gravity.” You can throw your space helmet in the ring on What’s Up.
Last week's question: What happened to Mariner 3? (What went wrong with Mariner 3 that had to be corrected for Mariner 4?
Answer: The answer will be revealed next week.
Question from the week before: Give us an analogy for the surface area of the moon! Amuse or enlighten us. Example: X football fields.
Answer: Our five winners: Ian Kluft: Roughly equivalent to the area of the United States, Mexico, Canada, Greenland and the Arctic Ocean combined Linda Tullberg: More than 124 quadrillion Lego Bricks Craig Hutchinson: 4.8 quadrillion Moon Pies Greg McCarron: Almost 74 trillion Planetary Radio t-shirts Ken Smith: 632.2 trillion human "moons"