So, a few weeks ago we all got an email here at cosmic variance inviting us to the first ever "NASA tweetup" for the next Shuttle Launch. Sean and Mark are in Australia and JoAnne is in Egypt, and Julianne is a launch veteran... but Daniel and I decided that it was too good of an opportunity to pass up. This is despite the fact that neither of us actually knew what a tweetup was, or had ever tweeted before... So we rearranged our schedules, met yesterday in Denver, woke up at 6 am this morning, and are now at Kennedy Space Center with 100 space twitterers. They've got a full program here with astronauts and a tour today, and the launch of mission STS-129 to the space station at 2:29 pm tomorrow. The event just started... So stay tuned, we'll keep you posted. We will be blogging as well as loosing our tweeting virginity @cosmicvariance. You can follow the rest of the gang by looking for #nasatweetup.