NASA grows audience, credibility through tweetups

Tuesday, November 15, 2011 | 10:28 a.m. CST; updated 10:35 a.m. CST, Tuesday, November 15, 2011

HAMPTON, Va. — Rocket science isn't easily explainable in 140 characters, but NASA is asking a group of people to do just that with a series of VIP tours for some of its ardent Twitter followers.